90 NEW MONTGOMERY STREET
                            SAN FRANCISCO, CALIFORNIA


                                  OFFICE LEASE







       LANDLORD:     THE CANADA LIFE ASSURANCE COMPANY

       TENANT:       FORECROSS CORPORATION









                                      TABLE OF CONTENTS
                                                                  PAGE
 1. Parties ......................................................  1
 2. Premises .....................................................  1
 3. Term .........................................................  1
 4. Possession ...................................................  2
 5. Rent .........................................................  2
 6. Security Deposit .............................................  3
 7. Tenant's Share Of Expenses And Taxes .........................  4
 8. Use ..........................................................  7
 9. Compliance With Law ..........................................  8
 10. Alterations .................................................  8
 11. Repairs ..................................................... 10
 12. Liens ....................................................... 11
 13. Assignment And Subletting ................................... 11
 14. Indemnification ............................................. 13
 15. Subrogation ................................................. 14
 16. Insurance ................................................... 14
 17. Services And Utilities ...................................... 15
 18. Taxes On Tenant's Personal Property ......................... 17
 19. Rules And Regulations ....................................... 17
 20. Holding Over ................................................ 18
 21. Entry By Landlord ........................................... 18
 22. Damage And Destruction ...................................... 19
 23. Default ..................................................... 20
 24. Remedies In Default ......................................... 21
 25. Eminent Domain .............................................. 22
 26. Estoppel Certificate ........................................ 23
 27. Authority Of Tenant ......................................... 24
 28. Brokers ..................................................... 24
 29. Default By Landlord ......................................... 24
 30. Landlord's Option To Relocate Tenant ........................ 24
 31. Renewal Option .............................................. 25
 32. Expansion Option ............................................ 26
 33. General Provisions .......................................... 27










                                  EXHIBIT LIST

Exhibit A Description of the Premises
Exhibit B Index of Defined Terms
Exhibit C Expense Exclusions
Exhibit D Rules and Regulations














                              90 MONTGOMERY STREET
                                  OFFICE LEASE
                             BASIC LEASE INFORMATION
Section I       Date:                          November _, 1996
Section I       Landlord:                      The Canada Life Assurance 
Company
                Address:                       90 New Montgomery Street
                                               Suite 1201
                                               San Francisco, CA 94105
                Contact:                       Ann McNee
                Telephone:                     (415) 777-0952
Section 1       Tenant:                        Forecross Corporation
                Address:                       90 New Montgomery Street
                                               Suite 700
                                               San Francisco, CA 94105
                Contact:                       Kim Jones
                Telephone:                     (415) 543-1515
Section 2       Rentable Area of Premises:     6,181
Section 2       Rentable Area of Building:     113,605
Section 2       Rentable Area of
                 Office Space in Building:     110,326
Section 2       Load Factor:                   1.1616
Section 2       Floor(s):                      Seventh
Section 2       Suite(s):                      700
Section 3       Commencement Date:             January 1, 1997
Section 3       Expiration Date:               December 31, 2001






Section 5       Base Rent:


                                                           Base Rent Per
                                                           Rentable                  
Monthly,
                                  Lease Years              Square Foot           
Installments
                                  -----------              -----------        
- - ------------
                                                            
Years 1-3                         $24.00                   $12,362.00
(rent for first
month of lease
term waived)
Years 4 and 5                     $25.00                   $12,877.08


Section 6      Security Deposit:                     $12,877.08
Section 7      Base Year:                            1997
Section 7      Tenant's Tax
                        Share:                       5.44%
Section 7      Tenant's
                        Expense Share:               5.60%
Section 8        Permitted Use
                        Other than as
                        General Office
                        Space:                       None
Section 16      Tenant's
                        Minimum
                        General Liability
                        Insurance:                   $1,000.000
Section 28       Brokers:                            CAC Group Inc.

              Exhibits Attached:                     A, B, C and D

         The foregoing Basic Lease  Information is incorporated  into and made a
part of this  Lease.  Each  reference  in this  Lease to any of the Basic  Lease
Information  shall mean the specified  information  set forth above and shall be
construed to incorporate all of the terms provided under the particular  section
of this Lease pertaining to such information. In the event of a conflict between
any Basic Lease  Information  and the remainder of this Lease,  the remainder of
this Lease shall control.








                            90 NEW MONTGOMERY STREET
                                  OFFICE LEASE
1. PARTIES

         This Lease,  dated for reference purposes only as of the date set forth
on the  first  line of the  Basic  Lease  Information,  is  made by and  between
Landlord and Tenant specified in the Basic Lease Information.

2. PREMISES

         Landlord  leases to Tenant and Tenant leases from Landlord that certain
space  outlined in the floor  plan(s)  attached as Exhibit A,  together with the
improvements now or hereafter located therein (the "Premises"), upon and subject
to the conditions  set forth in this Lease.  Landlord and Tenant agree that, for
purposes of this Lease,  the  Premises  shall be deemed to have a Rentable  Area
equal to the square footage specified in the Basic Lease Information. As used in
this Lease,  the "Rentable  Area" of the Premises  shall be equal to the "Usable
Area" of the Premises  ("usable  area" shall be computed in accordance  with the
American  Standard  Method of  Measuring  Floor Area in Office  Buildings,  ANSI
Z65.1-1980,   published  by  the  Building  Owners  and  Managers   Association)
multiplied  by the load  factor set forth in the Basic  Lease  Information.  The
Premises are situated in that certain office building (the "Building")  commonly
known as 90 New Montgomery Street, San Francisco,  California,  in the suite(s),
if any, and on the floor(s) specified in the Basic Lease Information. As used in
this  Lease,  the term  "Building"  includes  the land upon  which  such  office
building stands and the land and  improvements  surrounding such office building
and designated from time to time by Landlord as land or Common Areas (as defined
below) appurtenant to such office building, together with utilities, facilities,
drives,  walkways and other  amenities  appurtenant  to or servicing such office
building.  The  Rentable  Areas of the  Building  and of the office space in the
Building are set forth in the Basic Lease  Information.  An index of all defined
terms used herein is set forth in attached Exhibit B.

3. TERM

         The  Premises are leased for a term (the "Term") to commence 
and end on the dates respectively specified in the Basic Lease Information, 
unless the Term shall sooner  terminate as provided in this Lease. The dates 
upon which the Term shall commence  and  terminate   pursuant  to  this  Section
are called the "Commencement Date" and the "Expiration Date," respectively.










4. POSSESSION

         (a) By the Commencement Date,  Landlord shall (i) demolish the 
existing partitions  in the Premises  shown on Exhibit A, (ii) repaint the 
Premises  with Building-standard  paint and replace the carpet base therein,  
(iii) upgrade the electrical  panel  on the  seventh  (7th)  floor  of  the  
Building  to  provide electrical  circuits  sufficient for Tenant's  current use
of the Premises,  and (iv)  recarpet  Suite  707  with  Building-standard  
carpet (collectively,  the "Leasehold  Improvement  Work").  Landlord  shall pay
the cost of the Leasehold Improvement Work up to a maximum  expenditure of 
Sixteen Thousand Ninety Dollars ($l6,090)("Landlord's  Maximum  Contribution").
If the  cost  of the  Leasehold Improvement Work shall exceed Landlord's 
Maximum Contribution, then Tenant shall pay the excess  costs to Landlord  
upon demand and, if  requested  by Landlord, prior to the commencment of the 
Leasehold Improvement Work.  Notwithstanding the foregoing, Landlord and 
Tenant shall each pay fifty percent (50%) of the cost of upgrading the 
electrical  panel pursuant to clause (iii) above  irrespective  of whether 
the cost of the Leasehold  Improvement Work exceeds  Landlords's Maximum
Contribution,  provided that the portion of such cost paid by Landlord  
shall be debited against Landlord's Maximum Contribution.

         (b) If,  for any reason  whatsoever,  Landlord  fails to  substantially
complete the Leasehold  Improvement  Work by the  Commencement  Date, this Lease
shall remain in full force and effect,  and Landlord  shall have no liability to
Tenant for any loss or damage  resulting from such failure,  provided,  however,
that (i) Base Rent under Subsection 5(a) and Additional  Charges under Section 7
of this Lease shall be abated for the period between the  Commencement  Date and
the date on which  Landlord  substantially  completes the Leasehold  Improvement
Work,  and (ii) until  Landlord has so  substantially  completed  the Leasehold
Improvement Work, Tenant shall continue to pay Base Rent and Additional  Charges
in accordance with the terms of the Original Lease (as hereinafter defined).

         (c) The purpose of attached Exhibit A is only to show the approximate
location of the Premises in the Building, and such Exhibit is not meant to
constitute an agreement as to the construction or Rentable Area of the Premises,
as to the specific location of elements of the Common Areas, or as to the
specific location of the access ways to the Premises or the Building. Landlord
reserves the right, at any time and from time to time, to make alterations or
additions to, to construct other improvements in, and to alter the dimensions
and appearance of the Building and the Common Areas, provided that Landlord
shall have no right to alter the Premises during the Term.

5. RENT

         (a)  Beginning on the first day of the second month following the
Commencement Date, Tenant shall pay to Landlord as annual minimum rent for the
Premises the sum specified in the Basic Lease Information as "Base Rent." Base
Rent shall be payable in U.S. dollars on the first  





day of the Term and on or before the first day of each and  every  successive
calendar month thereafter.  In the event the Term commences on a day other than
the first day of a calendar month, then the monthly Base Rent for such 
fractional month shall be prorated on a daily basis based upon a thirty (30) 
day calendar month.  Base Rent shall be paid to Landlord, without any demand 
and without any deduction or offset whatsoever, in lawful money of the United 
States of America at the address for Landlord specified in the Basic Lease 
Information, or to such other person or at such other place as Landlord may 
from time to time designate by notice to Tenant.

         (b) Tenant shall pay to Landlord as additional charges all fees, 
costs, expenses, charges and other amounts required to be paid by Tenant 
under this Lease other than Base Rent ("Additional  Charges").  Additional 
Charges shall be payable to Landlord at the place where the Base Rent is 
payable.  Landlord shall have the same remedies for a default in the payment 
of Additional Charges as for a default in the payment of Base Rent.  The 
terms "Base Rent" and "Additional Charges" are sometimes collectively 
referred to herein as "Rent."

         (c) If more than one (1) time during any twelve (12) consecutive  
month period Tenant shall fail to pay to Landlord any Rent within two (2)  
business days after the date on which such Rent is due and  payable, then for
each such additional failure to pay any Rent, Tenant shall pay to Landlord a 
late payment charge equal to four percent (4%) of the unpaid amount of such  
Rent, to compensate Landlord for Landlord's additional administrative and 
other costs resulting from each such additional failure by Tenant.  This late 
payment charge shall be paid to Landlord as Additional Charges together with 
the unpaid amount of such Rent. Any payment of Rent to Landlord following 
service upon Tenant of a three (3) day notice to pay Rent or quit shall be in 
the form of cash or a certified or cashier's check.

6. SECURITY DEPOSIT

         Tenant has deposited with Landlord the sum (if any) specified in the
Basic Lease Information as the "Security Deposit." The Security Deposit shall 
be held by Landlord as security for the full and faithful  performance by 
Tenant of all the provisions of this Lease.  If Tenant defaults with respect  
to any provision of this Lease, including, without limitation, provisions 
relating to the payment of Rent, Landlord may, but shall not be required to, 
use, apply or retain all or any part of the Security Deposit for the payment 
of any Rent or as compensation to Landlord for any other loss or damage that  
Landlord may suffer by reason of Tenant's default.  If any portion of the 
Security Deposit is so used, applied or retained, Tenant shall, within five 
(5) days after demand from Landlord, deposit with Landlord funds sufficient to
restore the Security Deposit to its  original  amount.  Landlord  shall not be 
required to keep the Security Deposit separate from Landlord's general funds, 
no trust relationship shall be created between Landlord and Tenant with 
respect to the Security Deposit, and Tenant shall not be entitled to interest 
on the Security Deposit. If Tenant shall fully and faithfully perform






every provision of this Lease, the remaining balance, if any, of the Security
Deposit shall be returned to Tenant (or at Landlord's option, to the last
assignee of Tenant's interest hereunder) within thirty (30) days after 
the Expiration Date. In the event of termination of Landlord's interest 
in this Lease, Landlord may transfer the Security Deposit to Landlord's  
successor in interest and upon such transfer, Landlord shall be relieved of any 
and all liability for or obligation with respect to the Security  Deposit.  
Tenant shall look solely to such successor in interest of Landlord for  
return of the remaining balance, if any, of the Security Deposit. Tenant 
waives the provisions of California Civil Code Section  1950.7(c)  limiting  
Landlord's right to apply the Security Deposit to remedy certain specified 
defaults only.

7. TENANT'S SHARE OF EXPENSES AND TAXES

         (a) During the Term, Tenant shall pay to Landlord as Additional Charges
             (i) Tenant's Expense Share (as defined below) of the total dollar  
                 increase, if any, in Expenses (as defined below) 
                 attributable to each  Computation Year (as defined below) 
                 over Base Expenses (as defined below) and 
             (ii) Tenant's Tax Share (as defined  below) of the total dollar 
                 increase, if any, in Taxes (as defined below) attributable 
                 to each Computation Year over Base Taxes (as defined below).

         (b) During the last month of the Base Year and each Computation Year
 or as soon thereafter as practicable, Landlord shall give to Tenant notice of
 Landlord's  estimate of the total amounts that will be payable by Tenant under
 Subsection 7(a) for the following  Computation  Year. On or before the first 
day of each month during the following Computation Year, Tenant shall pay to
Landlord one-twelfth (1/12) of such estimated amounts, provided that if 
Landlord fails to give such notice in the last month of the prior Computation 
Year then Tenant shall continue to pay on the basis of the prior Computation 
Year's estimate until the first day of the calendar month next succeeding the 
date when such notice is given by Landlord.  If at any time or times Landlord 
determines that the amounts payable under Subsection 7(a) for the current 
Computation Year will vary from Landlord's estimate given to Tenant, 
Landlord, by notice to Tenant, may revise the estimate for such Computation 
Year, and subsequent payments by Tenant for such Computation Year shall be 
based upon such revised estimate.
  
         (c) Following the end of each Computation Year, Landlord shall 
deliver to Tenant a statement of amounts payable under Subsection 7(a) for 
such Computation  Year,  prepared by Landlord and audited by an independent 
accounting firm designated by Landlord.  If such statement shows an amount 
owing by Tenant that is less than the payments for such Computation Year 
previously made by Tenant,  and if no Event of Default (as defined below) is 
outstanding at the time such  statement is delivered, Landlord shall credit 
such amount to the next payments of Rent falling due under this Lease or, if 
the Term has expired, shall refund such amount to Tenant.  If such statement 
shows an amount owing by Tenant that is more than the payments for such 
Computation 


                                    4







Year previously made by Tenant, Tenant shall pay the deficiency to Landlord 
within thirty (30) days after  delivery of such statement.  The obligations 
of Landlord and Tenant under this Subsection 7(c) shall survive the 
Expiration Date, and, if the Expiration  Date is a day other than the last 
day of a Computation Year, the adjustment in Rent pursuant to this Section 7 
for the Computation  Year in which the  Expiration Date occurs shall be 
prorated in the proportion that the number of days in such Computation Year 
preceding the Expiration Date bears to 365.

         (d) As used in this Lease,  the following terms shall have the 
meanings specified:
             (i) "Expenses" shall mean (A) all costs of management, 
                  operation, maintenance and repair of the Building, 
                  including, without limitation, costs for janitorial,  
                  maintenance,  security  and other  service  contracts;  
                  charges for electricity, heat, ventilation, air conditioning,
                  light, power, water, sewer and waste disposal and other 
                  utilities;  charges or fees for utility connections and
                  equipment;  costs  for  materials,  supplies,  equipment  
                  and  tools;  costs for maintenance and repairs;  insurance 
                  premiums and license,  permit and inspection fees;  
                  depreciation  on  personal  property;  the fair  market 
                  rental  value of Landlord's and the property  manager's 
                  offices in the Building;  that portion of wages, salaries, 
                  employee benefits and payroll costs of personnel engaged 
                  in the management,  operation  and  maintenance  of the 
                  Building  attributable to such personnel in connection  
                  with the  management,  operation and maintenance of the
                  Building;  fees, charges and other costs for management,  
                  consulting, legal, accounting and other services performed 
                  by any independent  contractors engaged by Landlord or for 
                  any such services  performed by Landlord in connection with
                  the Building;  and any other reasonable expenses incurred 
                  by Landlord  which, under generally accepted accounting 
                  principles, would be considered an operating or
                  maintenance expense of the Building; and (B) the cost of 
                  any capital improvements  made  to  the  Building  after  its
                  construction,  which capital improvements lead to a 
                  reduction in other Expenses, or made to the Building after 
                  the date of this Lease as a result of governmental orders,  
                  ordinances, codes, rules and regulations that were 
                  inapplicable to the Building at the time permits for its 
                  construction  were obtained,  such cost to be amortized 
                  over the useful life of such capital improvements in 
                  accordance with generally accepted accounting principles,  
                  together with interest on the unamortized balance at a 
                  rate equal to the lesser of (1) the rate of interest 
                  publicly announced by Bank of America NT&SA in San 
                  Francisco, California, as its "reference rate" (or any
                  successor interest rate), plus two percent (2%), which 
                  rate on the unamortized balance  shall  be  adjusted  as 
                  of the  effective  date of any  change in such reference  (or
                  successor)  rate,  or (2) the  highest  rate  permitted  
                  by law.  Notwithstanding  the  foregoing,  Expenses shall 
                  exclude Taxes and any costs set forth in attached  Exhibit 
                  C. In the event the Rentable Area of the office space in 
                  the Building is less than ninety-five  percent (95%) 
                  occupied during the Base Year or any  Computation  Year,  
                  Expenses for the Base Year and each such Computation Year 
                  shall be determined by adjusting the actual costs under 
                  clauses (A) and (B) above for the Base Year and each such  
                  Computation  Year upward to equal Landlord's reasonable 
                  estimate of the costs that would have been incurred
                  under clauses (A) and (B) if  ninety-five  percent  (95%) of
                  the total Rentable Area 


                                            5





                  of the office space in the Building had been fully 
                  occupied for the entire Base Year and each such 
                  Computation Year. The determination of Expenses shall be 
                  made by Landlord, shall be audited by Landlord's 
                  independent public accounting firm as provided in Section  
                  7(c) and shall be final and binding on Tenant, provided
                  that Tenant shall have a  reasonable  opportunity  to review
                  such determination prior to the time at which it becomes 
                  final and binding.
              (ii) "Taxes" shall mean all taxes, assessments and charges 
                  levied upon or with respect to the Building (including,  
                  without limitation, the Common Areas and all leasehold  
                  improvement  work),  any personal  property of Landlord
                  used in the operation of the Building, or Landlord's 
                  interest in the Building or in such personal property. 
                  Taxes shall include, without limitation,  all general real 
                  property  taxes and  general  and special  assessments,  
                  transit  charges, housing fund assessments,  service 
                  payments in lieu of taxes and any tax, fee or excise on 
                  the act of entering into this Lease or any other lease of 
                  space in the Building,  on the use or  occupancy of all or 
                  any part of the  Building,  on the rent payable  under 
                  this Lease or any other lease of space in the Building or 
                  on or in connection  with the business of renting  space in
                  the Building,  that are now or hereafter  levied or 
                  assessed against Landlord by the United States of America, 
                  the State of California, or any political subdivision,   
                  public corporation,  district  or other  political  or 
                  public  entity,  and shall  also include any other tax, 
                  fee or excise,  however described,  that may be levied or
                  assessed as a  substitute  for, or as an  addition  to, in
                  full or in part,  any other Taxes,  whether or not now  
                  customary or within the  contemplation  of the parties. 
                  Taxes also shall include all reasonable legal,  accounting,  
                  consulting or other fees, costs and  disbursements  
                  incurred in connection with proceedings to contest,  
                  determine  or reduce  Taxes.  Taxes  shall not  include  
                  franchise, transfer,  estate or  inheritance  taxes,  or 
                  income  taxes  measured by the net income of Landlord  
                  from all sources,  unless,  due to a change in the method 
                  of taxation,  any of these  taxes are  levied or  assessed  
                  against Landlord as a substitute for, or as an addition 
                  to, in full or in part, any other tax that would otherwise 
                  constitute a Tax.

              (iii) "Base Year" shall mean the calendar year specified in the
                  Basic Lease Information.

              (iv) "Base Expenses" shall mean the amount of Expenses for the
                  Base Year.

              (v)  "Base  Taxes"  shall  mean the  amount of Taxes for the 
                  Base Year, provided,  however,  that if the Building is 
                  assessed on less than a fully completed  basis for the 
                  Base  Year,  then Base  Taxes  shall mean the amount of
                  Taxes that would have been  payable  with  respect to the  
                  Building for the Base Year if the Building had been 
                  assessed on a fully  completed  basis for the Base Year, 
                  as reasonably determined by Landlord.

              (vi) "Tenant's Expense Share" shall mean the percentage figure so
                  specified in the Basic Lease Information.  This percentage 
                  figure has been obtained by dividing the Rentable Area of 
                  the Premises by the total Rentable Area of the office space 
                  in the

                                        6







                  Building.  In the event Tenant's Expense Share is changed 
                  during a Computation Year by reason of a change in the 
                  Rentable Area of the Premises or the office space in the 
                  Building, Tenant's Expense  Share  shall  thereafter mean 
                  the percentage  figure obtained by dividing the new 
                  Rentable Area, if any, of the Premises by the new total  
                  Rentable Area, if any, of the office space in the Building.

              (vii)  "Tenant's Tax Share" shall mean the  percentage figure so
                  specified  in the Basic  Lease  Information.  This percentage
                  figure has been obtained by dividing the Rentable Area of 
                  the Premises by the total Rentable Area of the Building.  In
                  the event Tenant's Tax Share is changed during a 
                  Computation  Year by reason of a change in the Rentable  
                  Area of the Premises or the Building, Tenant's Tax Share 
                  shall  thereafter  mean the percentage figure obtained by 
                  dividing the new Rentable  Area,  if any, of the Premises by 
                  the new total Rentable Area, if any, of the Building.

              (viii) "Computation Year" shall mean each twelve (12) consecutive
                  month period  commencing  January 1 of each year during the
                  Term  following  the Base  Year,  provided  that  Landlord,
                  upon  notice to  Tenant,  may change the Computation  Year 
                  from time to time to any other twelve (12)  consecutive  
                  month period, and, in the event of any such change, 
                  Tenant's Expense Share of Expenses over Base Expenses and  
                  Tenant's  Tax Share of Taxes over Base Taxes shall be 
                  equitably adjusted for the Computation Years involved in any 
                  such change.

8. USE

         (a) Tenant shall use and continuously occupy the Premises for general
office purposes and any other purpose  specified in the Basic Lease Information
and shall not use the Premises, or permit the Premises to be used, for any other
purpose.

         (b) Tenant shall take no action,  nor permit any action to be taken, in
or about the Premises  that will in any way  increase  the  existing rate of or
affect any fire or other insurance upon the Building or any of its contents,  or
cause cancellation of any insurance  policy  covering  all or any part of the
Building or any of its contents.  Tenant  shall take no action,  nor permit any
action to be taken, in or about the Premises that will in any way injure, annoy,
obstruct or interfere with the rights of other tenants or occupants of the
Building  nor use or allow the  Premises to be used for any improper, immoral,
unlawful or objectionable  purpose,  nor cause, maintain or permit any nuisance
in, on or about the  Premises.  Tenant  shall  neither  commit  nor suffer to be
committed any waste in, on or about the Premises.

         (c) Tenant shall have a  non-exclusive  right to use the Common Areas,
provided,  however,  that  Tenant's  use of the Common Areas shall be subject to
such rules and  regulations as Landlord shall make from time to time. The manner
and expense of maintaining, repairing and operating the Common Areas shall be at
the sole discretion of Landlord.  As used in this Lease, the term "Common Areas"
shall  mean the  Building's  pedestrian  sidewalks,  truckways,  loading  docks,
hallways, lobby, corridors, delivery

                                        7






areas,  elevators,  escalators  and stairs  outside of the leased areas, public
bathrooms and comfort  stations,  and all other areas or improvements that from
time to time may be  provided  by Landlord  for the  convenience  and use of the
tenants of the Building and their  respective  sub-tenants,  agents, employees,
customers and invitees and any other  licensees of Landlord.  Landlord reserves
the right,  from time to time,  to  utilize  portions  of the  Common Areas for
entertainment,  art shows,  displays,  product  shows,  the leasing of kiosks or
any other uses that Landlord deems reasonable.

         (d) Tenant shall have access to the Premises  24-hours a day, 7-days a
week.

9. COMPLIANCE WITH LAW

         Tenant  shall  neither  use, nor permit the use of, the Premises in any
way that will conflict with any law, statute,  ordinance or governmental rule or
regulation  now in force or  hereafter  enacted  or  promulgated (collectively,
"Laws").  At its sole expense,  Tenant shall promptly  comply with all Laws, and
with the  requirements  of any  board of fire  insurance  underwriters or other
similar  body  now  or  hereafter  constituted,  relating  to or affecting  the
condition,  use or  occupancy  of the  Premises,  provided  that nothing in this
Section 9 shall obligate  Tenant to alter or make  improvements  to the Premises
except for  alterations  or  improvements  required  to comply  with any Laws or
requirements due to the use of the Premises by Tenant.

10. ALTERATIONS

         (a) Tenant shall  neither  make nor permit to be made any alterations,
additions  or  improvements  to all or any part of the  Premises,  or attach any
fixtures or  equipment to the Premises  (collectively,  "Alterations"), without
Landlord's prior approval, which approval shall not be unreasonably withheld. If
Tenant  desires  that any  Alterations  be made,  Tenant  shall  give notice to
Landlord of the nature and estimated cost of such Alterations.  Within three (3)
business  days after  Landlord's  receipt of such  notice,  Landlord shall give
notice to Tenant stating whether  Landlord  requires Tenant to provide Landlord
with detailed plans and specifications for the proposed Alterations.

         (b)  If  Landlord   requires  Tenant  to  provide  detailed  plans  and
specifications,  the following procedures shall be followed: Tenant, at Tenant's
expense,  shall  have  reasonably  detailed  plans  and  specifications for the
proposed  Alterations  prepared at Tenant's sole expense by a licensed architect
or space planner.  Landlord shall approve or disapprove the proposed Alterations
within ten (10) business days after delivery of such plans and specifications to
Landlord.  Failure of Landlord  to respond  within  such ten (10) business  day
period shall be deemed to be approval by Landlord of the  proposed Alterations.
If Landlord  disapproves  the proposed  Alterations,  Landlord  shall specify in
reasonable  detail its reasons for such  disapproval and the changes required in
order to secure its approval.  In the event  Landlord  disapproves  the proposed
Alterations,  Tenant may revise the plans and  specifications  as necessary  to
secure Landlord's approval or may elect to forego the proposed  Alterations.  If
Tenant elects to revise the plans and


                                        8







specifications. Landlord shall have a period of ten (10) business days following
submission of such revised plans and specifications to approve or disapprove the
proposed  Alterations as provided  above. If Landlord  disapproves  such revised
plans and  specifications,  the same  procedure  shall be followed as to further
revisions until  Landlord's  approval is given or is deemed to be given or until
Tenant elects to forego the proposed Alterations.

         (c) If Landlord  does not  require  Tenant to have  detailed plans and
specifications  prepared for the  proposed  Alterations  pursuant to Subsection
10(b), then Landlord shall approve or disapprove the proposed Alterations within
five (5) business days of receipt of Tenant's  initial  notice of the nature and
estimated  costs of the  proposed  Alterations  pursuant  to  Subsection 10(a).
Failure of Landlord to respond within such five (5) business day period shall be
deemed to be approval by Landlord of the proposed Alterations.

         (d) As a condition of approving the proposed Alterations, Landlord may
require  Tenant to agree to remove all or any part of such  Alterations no later
than the Expiration Date and to reimburse  Landlord for any reasonable  expenses
incurred by  Landlord  in  reviewing  the plans and  specifications,  including,
without limitation,  the reasonable costs of any outside consultants retained by
Landlord for such purpose.

         (e) If Landlord  approves the  proposed  Alterations,  the  Alterations
shall be made in accordance with the detailed plans and specifications approved
by Landlord or, if no plans or specifications were required,  in accordance with
Tenant's  notice to Landlord  under Section 10(a) and with any other reasonable
requirements imposed by Landlord. The Alterations shall be performed by Landlord
or, at  Landlord's  option,  by a contractor  selected by Tenant and reasonably
approved  by  Landlord.  In either  event,  subject  to  Subsection 10(f), all
Alterations  shall be made at Tenant's sole expense,  and Tenant shall reimburse
Landlord for all expenses incurred by Landlord with respect to such Alterations,
including,  without  limitation,  a reasonable charge for Landlord's overhead if
such  Alterations  are made by Landlord,  or a reasonable  charge for Landlord's
cost of inspecting the  Alterations  prior to and upon their  completion if such
Alterations are made by Tenant's contractor. Tenant shall reimburse Landlord for
all such  expenses  within  ten (10) days  after  receipt  of any  invoice  from
Landlord.   If  Tenant's   approved   contractor   constructs  or  installs  the
Alterations,  Tenant shall provide  Landlord with copies of all required permits
and other governmental  approvals for such Alterations,  and Landlord shall have
the right from time to time to inspect such Alterations  prior to or after their
completion.  All Alterations  shall immediately  become Landlord's property and
shall  remain in the  Premises at the end of the Term  without compensation  to
Tenant, unless Landlord conditioned its approval of such Alterations on 
Tenant's agreement to remove them,  in which event  Tenant shall by the  
Expiration  Date remove such Alterations and restore the Premises to their 
condition prior to the installation of such Alterations.

                                        9







         (f) Landlord shall provide  Tenant with an allowance (the "Alterations
Allowance") of Twenty Five Thousand  Dollars  ($25,000) to be applied toward the
cost of Alterations made by, Tenant in the Premises pursuant to this Section 10,
provided,  however,  that such Alterations  Allowance shall be available only to
pay actual  construction  costs and the costs of computer and telephone cabling
installed within the Premises (the "Approved Alterations").  Landlord shall 
make disbursements of the Alterations Allowance to Tenant from time to time 
following the completion of Approved Alterations and the delivery to Landlord 
of invoices, lien releases and other  documentation  satisfactory to Landlord  
evidencing the payment  in full  of the  cost of  such  Approved  Alterations.  
Notwithstanding anything,  herein to the  contrary.  Landlord  shall have no 
obligation to make disbursements of the Alterations Allowance after December 
31, 1999, and any portion of the Alterations Allowance that remains 
undisbursed as of such date shall be deemed forfeited by and shall no longer 
be available to Tenant.

11. REPAIRS

         (a) By occupying the Premises,  Tenant accepts the Premises as being in
the condition in which  Landlord is obligated to deliver the Premises under the
terms of this Lease, subject to  Landlord's  timely  completion of the punchlist
items  identified by Landlord and Tenant during their inspection of the Premises
prior to Tenant's occupancy pursuant to Subsection 4(a). At all times during the
Term,  and at Tenant's  sole  expense,  Tenant shall keep all of the Premises in
good condition and repair,  except for ordinary wear and tear or damage by fire,
earthquake, act of God or the elements. Tenant waives all rights to make repairs
at the expense of Landlord or in lieu of such  repairs to vacate the Premises as
provided by  California  Civil Code Sections 1941 and 1942 or any other Laws now
or  hereafter  in  effect.  Tenant  shall at the end of the Term  surrender  the
Premises to Landlord in the same condition as when received, except for ordinary
wear and  tear,  damage by fire,  earthquake,  act of God or the elements,  and
Alterations approved by Landlord. Landlord shall have no obligation and has made
no promise to alter, remodel, improve, repair, decorate or paint all or any part
of the  Premises,  except as  specifically  set forth in the Work  Agreement and
Section  11 (b).  Furthermore,  Landlord has made no  representations to Tenant
regarding the condition of the Premises or the Building,  except as specifically
set forth in this Lease.

         (b)  Notwithstanding  the provisions of Section 11 (a), Landlord shall
repair and maintain  the  structural  portions of the  Building, including the
interior walls, roof, basic plumbing, heating, air conditioning, ventilation and
electrical systems, installed or furnished by Landlord, unless the necessity for
such  maintenance  and  repair  is in  any  way  caused  by  the negligence  or
intentional  misconduct  of, or failure to observe or perform any provision  of
this Lease by, Tenant, or Tenant's agents, servants,  contractors, employees or
invitees, in which case Tenant shall pay to Landlord the reasonable cost of such
maintenance and repair. Landlord shall not be liable for any failure to make any
such repair or to perform any such maintenance  unless Landlord  receives notice
of the need for such  repair or  maintenance  from Tenant and fails to make such
repair or perform

                                       10







such  maintenance  within a reasonable  period of time  following such notice by
Tenant.  Rent  shall not abate nor shall  Landlord  be liable as a result of any
injury to or interference  with Tenant's business arising from the making of any
repair,  or the  performance  of any  maintenance,  in or to any  portion of the
Building or the Premises.

12. LIENS

         Tenant shall keep the  Premises  and the  Building  free from any liens
arising out of any act or omission of Tenant, including, without limitation, any
work performed,  materials furnished or obligations incurred by Tenant. Landlord
shall have the right to post and keep posted on the  Premises  any notices  that
may be provided by law or that Landlord may deem to be proper for the protection
of Landlord, the Premises and the Building from such liens. Tenant shall give to
Landlord at least ten (10) days' prior notice of the date of commencement of any
Alterations  on the  Premises in order to permit the posting of such notices by
Landlord.  Landlord may require, in Landlords's sole discretion, that Tenant, at
Tenant's sole expense,  provide to Landlord a lien and  completion  bond in form
and substance  satisfactory  to Landlord in an amount equal to one hundred fifty
percent (150%) of the total estimated cost of any Alterations, to insure 
Landlord  against any liability for  mechanics' and  materialmen's liens and to
insure completion of work.

13. ASSIGNMENT AND SUBLETTING

         (a)  Tenant  shall  not  directly  or  indirectly,  voluntarily  or  by
operation  of law,  sell,  assign,  encumber,  pledge or  otherwise  transfer or
hypothecate  all of its  interest in or rights with  respect to the  Premises or
Tenant's leasehold estate hereunder (collectively,  "Assignment"), or permit all
or any  portion of the  Premises to be  occupied  by anyone  other than Tenant,
sublet all or any  portion of the  Premises  or  transfer a portion of Tenant's
interest  in or rights  with  respect to  Tenant's  leasehold  estate hereunder
(collectively, "Sublease"), without Landlord's prior consent in each instance.

         (b) If Tenant  desires at any time to enter into an  Assignment of this
Lease or a Sublease of all or any portion of the  Premises,  Tenant shall first
give notice to Landlord of such desire, which  notice shall contain (i) the name
and address of the proposed assignee,  subtenant or occupant, (ii) the nature of
the proposed assignee's,  subtenant's or occupant's business to be carried on in
the  Premises,  (iii) the terms and  provisions  of the proposed Assignment or
Sublease and (iv) such financial  information as Landlord may reasonably request
concerning the proposed assignee, subtenant or occupant.

         (c) At any time within thirty (30) days after Landlord's receipt of the
notice specified in Subsection 13(b),  Landlord may by notice to Tenant elect to
(i) terminate this Lease as to the portion  (including all) of the Premises that
is specified in Tenant's notice, with a proportionate  abatement in Base Rent
payable by Tenant,  (ii)  consent to the Sublease or Assignment, or (iii) 
disapprove the Sublease or Assignment; provided, however, that if Landlord
elects not to exercise the option set forth in clause (i), Landlord          


                                   11



shall not unreasonably  withhold its consent to the Assignment or Sublease. As a
condition  for granting  its consent to any  Assignment  or  Sublease, however,
Landlord may require that Tenant agree to pay to Landlord one-half of the amount
by which all sums  payable  to  Tenant in  connection  with such  Assignment  or
Sublease exceed Rent payable by Tenant to Landlord hereunder (or a proportionate
amount of such Rent  representing  the  portion  of the  Premises  subject  to a
Sublease  if less than the  entire  Premises  are  subject  to a  Sublease).  If
Landlord  consents  to the  Sublease or  Assignment  within such thirty (30) day
period,  Tenant may within ninety (90) days after  Landlord's  consent, but not
later than the expiration of such ninety (90) days,  enter into such  Assignment
or Sublease upon the terms and conditions  set forth in the notice  furnished by
Tenant to Landlord pursuant to Subsection 13(b).

         (d) No consent by  Landlord  to any  Assignment  or  Sublease by Tenant
shall  relieve  Tenant of any  obligation  to be  performed by Tenant under this
Lease, whether arising before or after such Assignment or Sublease.  The consent
by Landlord to any  Assignment  or  Sublease  shall not relieve  Tenant from the
obligation  to obtain  Landlord's  express  consent to any other  Assignment  or
Sublease.  Any  Assignment or Sublease that fails to comply with this Section 13
shall be void and,  at the  option of  Landlord,  shall  constitute  an Event of
Default by Tenant under this Lease.  The  acceptance  of Rent by Landlord from a
proposed  assignee  or  subleasee  shall  not  constitute  the  consent  to such
Assignment or Sublease by Landlord.

         (e) Any sale or other transfer,  including,  without limitation, one by
consolidation,  merger or  reorganization,  of a majority of the voting stock of
Tenant (or of any guarantor of Tenant's obligations under this Lease), if Tenant
(or  such  guarantor)  is a  corporation,  or any sale or  other  transfer  of a
majority of the partnership interests in Tenant (or of any guarantor of Tenant's
obligations  under this Lease),  if Tenant (or such guarantor) is a partnership,
shall be an Assignment  for purposes of this Section 13,  except that  transfers
which result in the formation of a new company controlled by the same principals
as the transferring company will not be an Assignment.

         (f) Each assignee,  sublease or other transferee,  other than Landlord,
shall assume all  obligations of Tenant under this Lease and shall be and remain
liable  jointly and severally  with Tenant for the payment of Rent,  and for the
performance of all the  provisions of this Lease;  provided,  however,  that the
assignee,  sublease or other transferee shall be liable to Landlord for rent and
additional  charges only in the amount set forth in the  Assignment or Sublease.
No Assignment  shall be binding on Landlord  unless the assignee or Tenant shall
deliver  to  Landlord a  counterpart  of the  Assignment  and an  instrument  in
recordable  form  that  contains  a  covenant  of  assumption  by  the  assignee
satisfactory in substance and form to Landlord, consistent with the requirements
of this Subsection  13(f), but the failure or refusal of the assignee to execute
such  instrument of assumption  shall not release or discharge the assignee from
its liability as set forth above.
                                 

                                    12







         (g) In the  event of any  Assignment  or  Sublease  by Tenant or in the
event Tenant requests Landlord's approval of any Assignment or Sublease,  Tenant
shall pay  Landlords's  reasonable  attorneys'  fees,  costs  and  disbursements
incurred in connection therewith.

14. INDEMNIFICATION


         (a) If Tenant shall default in the performance of its obligations under
this Lease, Landlord, at any time thereafter and without notice, may remedy such
default for Tenant's  account and at Tenant's  expense,  without thereby waiving
any other rights or remedies of Landlord with respect to such default.

         (b) Tenant  agrees to  indemnify  Landlord  against  and hold  Landlord
harmless from any and all loss, cost, liability,  damage and expense, including,
without limitation, penalties, fines and reasonable attorneys' fees, incurred in
connection  with or  arising  from any  cause  whatsoever  in,  on or about  the
Premises,  except  to  the  extent  caused  by  the  negligence  or  intentional
misconduct of Landlord, including, without limitation, (i) any failure by Tenant
to observe or  perform  any of the  provisions  of this  Lease,  (ii) the use or
occupancy  or manner of use or occupancy of the Premises by Tenant or any person
claiming  through or under  Tenant,  (iii) the  condition of the Premises or any
occurrence or happening in or on the Premises from any cause whatsoever, or (iv)
any negligence or intentional misconduct,  whether prior to, during or after the
Term,  of Tenant or any  person  claiming  through  or under  Tenant,  or of the
contractors, agents, servants, employees, visitors or licensees of Tenant or any
such person, in, on or about the Premises or the Building. Tenant further agrees
to indemnify  Landlord,  Landlord's  agents, and the lessor or lessors under all
ground or  underlying  leases,  against and hold them  harmless from any and all
loss,  cost,  liability,  damage and  expense,  including,  without  limitation,
reasonable  attorneys'  fees,  incurred in  connection  with or arising from any
claims of any  persons  by reason of  injury to  persons  or damage to  property
occasioned by any event referred to in the preceding sentence.
         (c) Except as  specifically  provided  to the  contrary  in this Lease,
Tenant shall pay to Landlord,  within ten (10) business  days after  delivery by
Landlord  to  Tenant  of bills or  statements  therefor:  (i) sums  equal to all
expenditures  made and  monetary  obligations  incurred by  Landlord  including,
without  limitation,  expenditures made and obligations  incurred for reasonable
attorneys'  fees, in connection  with the remedying of any default by Tenant for
Tenant's account pursuant to the provisions of Subsection 14(a); (ii) sums equal
to  all  losses,  costs,  liabilities,  damages  and  expenses  referred  to  in
Subsection  14(b);  and (iii) sums equal to all  expenditures  made and monetary
obligations incurred by Landlord,  including,  without limitation,  expenditures
made and obligations  incurred for reasonable  attorneys' fees, in collecting or
attempting to collect Rent.

         (d)  Tenant  waives  all  claims  against  Landlord  for  damage to any
property or for injury or death of any person in, upon or about the  Premises or
the Building arising at any


                                       13








time and from any  cause  other  than  solely by  reason  of the  negligence  or
intentional misconduct Landlord or its employees or contractors.

         (e)  Tenant's  obligations  under  this  Section 14 shall  survive  the
expiration or sooner termination of the Term.

15. SUBROGATION

         Landlord and Tenant each shall  obtain from their  insurers a waiver of
all rights of  subrogation  that the insurer of one party might have against the
other party under all  policies of  insurance  maintained  by either at any time
during  the  Term   insuring  or  covering  the  Building  or  Premises  or  any
improvements,  fixtures,  equipment,  furnishings or other property,  including,
without limitation, salable goods, merchandise, and inventory, if any, in, on or
about the Premises.

16. INSURANCE

         (a)  Tenant  agrees to carry  and keep in force  during  the  Term,  at
Tenant's sole expense, the following types of insurance:

               (i) Public Liability and Property Damage. Comprehensive general
                   liability insurance,  including contractual  liability,  
                   with a minimum combined single  limit of  liability  equal 
                   to the  amount  set forth in the Basic  Lease Information, 
                   insuring against any and all liability for property damage 
                   and for injury to or death of persons  occurring in, on or 
                   about the Premises or arising out of the maintenance, use 
                   or occupancy of the Premises. All such comprehensive
                   general liability  insurance shall specifically insure the
                   performance by Tenant of its indemnity  obligations  under 
                   Section 14(b) with respect to liability for injury to or 
                   death of persons and for damage to property.
 
               (ii) Workers'  Compensation  and Employers'  Liability. Workers '
                   compensation and employers' liability insurance covering  
                   employees  for California Workers' Compensation  benefits, 
                   including employers' liability with limits for each 
                   accident in an amount reasonably required by Landlord.

               (iii) Tenant's Property. Insurance covering any and all fixtures,
                   equipment,  furnishings and personal property of Tenant 
                   from time to time in, on or about the Premises, providing  
                   protection against all perils included within a standard  
                   "all risk form" insurance policy, together with insurance
                   against sprinkler damage, vandalism, and malicious 
                   mischief. Such insurance shall be in an  amount  not less 
                   than the full  replacement  cost of the  property  insured
                   without deduction for depreciation.

               (iv) Policy Form. All policies of insurance  provided for in this
                   Section 16 shall be issued by insurance companies with a 
                   general  policyholders' rating  of not less than A and a  
                   financial  rating of XIII as rated in the most current 
                   available  "Best's  Insurance  Reports," and qualified to do 
                   business in the State of California; and, except for 

                                       14







                   workers'  compensation  and employers' liability, all such 
                   policies shall name Landlord, and such other persons and 
                   entities as Landlord specifies from time to time,  as  
                   additional  insureds.  Executed  copies or  certificates  
                   of all such policies  of  insurance  shall be  delivered  
                   to Landlord at least ten (10) days prior to the delivery 
                   of  possession of the Premises to Tenant,  and  thereafter
                   copies or certificates of all renewals of such policies of 
                   insurance within five (5)  days  prior  to the  expiration 
                   of the  term  of  each  such  policy.  All comprehensive  
                   general  liability  insurance  policies shall contain a 
                   provision that Landlord,  although named as an insured,  
                   shall nevertheless be entitled to recovery under such 
                   policies for any loss occasioned to Landlord, its agents 
                   and employees by reason of the negligence or willful act  
                   of Tenant.  As often as any such policy shall expire or 
                   terminate,  renewal or additional  policies shall be 
                   procured and  maintained  by Tenant in like manner and to 
                   like extent.  All such policies of insurance shall provide 
                   that the  companies  writing such policies shall  give to  
                   Landlord  thirty  (30)  days'  prior  written  notice (i) 
                   of anycancellation  or  lapse of the  policies  or (ii) of 
                   the  effective  date of any reduction in the amounts of 
                   insurance. All public liability, property damage and other 
                   casualty policies shall be written as primary  policies,  
                   not contributing with and not in excess of coverage that 
                   Landlord may carry.

         (b)  Landlord  agrees to carry and keep in force  during  the Term,  at
Landlord's sole expense,  property  insurance covering the Building and fixtures
therein in an amount reasonably determined by Landlord.

17. SERVICES AND UTILITIES

         (a)  Subject to the rules and  regulations  of the  Building,  Landlord
agrees to furnish to the Premises and the  Building the  following  services and
utilities:

               (i) Heating,  ventilation, and air conditioning ("HVAC") shall be
                   provided to the Premises  between the hours of 8:00 a.m.  
                   and 6:00 p.m., Monday through Friday, except for generally 
                   recognized  business holidays in San Francisco, California 
                   (such hours during these days shall be referred to herein
                   as  "Standard  Building  Hours"),  in  such  amounts  as 
                   are  necessary  for the comfortable  use and  occupancy  
                   of the  Premises as general  office  space,  as reasonably 
                   determined by Landlord.  Additionally, upon reasonable 
                   advance notice from Tenant,  Landlord  shall  provide the
                   Premises  with HVAC during other than Standard  Building
                   Hours,  provided,  however,  that  Tenant shall separately
                   reimburse Landlord for Landlords's cost of providing such 
                   HVAC to the Premises during other than Standard Building 
                   Hours.

               (ii)  Electricity for lighting and fractional  horsepower office
                   equipment  shall be provided  to the Premises twenty-four  
                   (24) hours per day, every day of the year, in such amounts 
                   as are necessary for the use and occupancy of the Premises 
                   as general office space,  as reasonably  determined by 
                   Landlord,  provided,  however,  that if Tenant  requests HVAC
                   during hours other than Standard Building Hours, or if 
                   Tenant otherwise  regularly uses electricity during other 
                   than Standard Business Hours, Landlord shall have the right

                                       15







                   to require Tenant to pay to Landlord as Additional Charges 
                   the cost of Tenant's additional  electricity  usage during 
                   such hours,  as reasonably  estimated by a utility company 
                   or by Landlord's electrical engineer.

               (iii) Janitorial service shall be provided to the Premises during
                   other than Standard  Building  Hours,  at a level that is
                   sufficient for the use and occupancy of the Premises as 
                   general office space, as reasonably determined by 
                   Landlord, but including trash disposal, cleaning of all 
                   restrooms once on all normal  business days, and periodic 
                   washing of the inside and outside  Building windows.

               (iv) Cold water for a coffee pot, water for reasonable drinking
                   and lavatory use shall be provided to the Premises and/or 
                   the floor on which the Premises are located twenty-four 
                   (24) hours per day, every day.

               (v)  Landlord  shall  provide   services  and  utilities to the
                   Building,  including the Common Areas,  as necessary to 
                   operate and maintain the Building in a manner 
                   substantially  equivalent to the manner in which comparable
                   office buildings in San Francisco, California, are 
                   operated and maintained.

               (vi) Landlord  shall provide  security  services for the Building
                   that, in Landlord's judgment, are required for the 
                   reasonable safety of Tenant's property and employees.

         (b) Landlord  shall not be liable for, and Tenant shall not be entitled
to any abatement of Rent or Additional Charges by reason of, (i) the inadequacy,
stoppage, interruption, or discontinuance of any of the services or utilities in
Subsection 17(a) above when caused by accident,  breakage, repair,  maintenance,
strike, lockout or other labor disturbance or labor dispute of any character, or
by any other cause,  similar or  dissimilar,  beyond the  reasonable control of
Landlord or (ii) the limitation, curtailment, rationing or restriction on use of
water,  electricity,  gas or any other  utility  provided to the Premises or the
Building by any public utility company or governmental agency, provided that any
such service or utility  affected as described in clause (i) or (ii) above shall
be restored by Landlord as soon as reasonably possible.

         (c) Without the prior consent of Landlord,  as provided  below,  Tenant
shall not install or use any equipment or machines in the  Premises,  including,
without limitation,  computers,  data processing machines,  punch card machines,
and  equipment  or machines  using in excess of 120 volts,  that will in any way
cause  Tenant to use  electricity  in the  Premises  in excess of the  amount of
electricity  that is commonly  used by other tenants of the Building for the use
and occupancy of their  respective  premises as general office space.  If Tenant
desires to install and use in the Premises any such  equipment or machines  that
will cause  Tenant to use  electricity  in excess of the amount that is commonly
used by  other  tenants  of the  Building  for the use and  occupancy  of  their
respective  premises as general  office  space,  Tenant shall first  procure the
consent of Landlord to the  installation  and use of such equipment or machines,
which consent shall
                   
                                        16






not be unreasonably  withheld. If such consent is granted by Landlord,  Landlord
shall have the right to cause an electrical  current submeter to be installed in
the Premises,  so as to measure the amount of electricity  consumed for any such
use.  Promptly  upon demand by Landlord,  Tenant shall  reimburse  Landlord,  as
Additional  Charges,  for the  cost of any  such  submeter,  including,  without
limitation,  the cost of its installation,  maintenance and repair,  and for the
cost of all electricity consumed as shown by such submeter,  at the rate charged
for such  service by the local  public  utility  furnishing  the same,  plus any
additional expense incurred by Landlord in keeping account of the electricity so
consumed.  If separately  submetered,  the cost of electricity shall be excluded
from the calculation of Expenses for the purpose of computing  Tenant's Share of
Expenses,  except that the cost of  electricity  used in or with  respect to the
Common Areas,  as reasonably  determined by Landlord,  shall be included in such
calculation.  If  Landlord  elects not to install a  separate  electric  current
submeter,  the cost of the  electricity  used by Tenant in excess of the  amount
that is commonly used by other tenants of the Building for the use and occupancy
of their respective  premises as general office space shall be established by an
estimate made by a utility  company or, at Landlord's  option,  by an electrical
engineer  selected by Landlord  and  reasonably  approved by Tenant and shall be
paid to Landlord monthly as Additional Charges together with the Rent.


18. TAXES ON TENANT'S PERSONAL PROPERTY

         Tenant agrees to pay, before  delinquency,  any and all taxes levied or
assessed during the Term upon Tenant's equipment,  furniture, trade fixtures and
other personal  property located in, on or about the Premises.  In the event any
or all of Tenant's  equipment,  furniture,  fixtures and other personal property
shall be assessed and taxed with the  Building,  Tenant shall pay to Landlord as
Additional  Charges the taxes so levied with respect to such  personal  property
within  ten (10)  business  days  after  delivery  to  Tenant by  Landlord  of a
statement  setting  forth  the  amount  of such  taxes  applicable  to  Tenant's
property.

19. RULES AND REGULATIONS

         Tenant  shall  faithfully   observe  and  comply  with  the  rules  and
regulations  for the Building that are attached as Exhibit D. Landlord  reserves
the right from time to time to make reasonable additions to and modifications of
such  rules and  regulations.  Any such  additions  and  modifications  shall be
binding on Tenant upon delivery of a copy of them to Tenant.  Landlord shall not
be  responsible  to  Tenant  for  the  nonperformance  of  any  such  rules  and
regulations  by any other  tenants or occupants of the  Building,  provided that
Landlord  shall not  discriminate  among tenants or occupants of the Building in
administering  such rules and regulations.  No rule or regulation shall conflict
with any term of this Lease and if any such  conflict  should arise the terms of
this Lease shall control.


                                       17







20. HOLDING OVER

         Any holding  over by Tenant  after the  Expiration  Date with the prior
consent of Landlord  shall be  construed  to be a tenancy from month to month on
all  of the  terms,  covenants  and  conditions  herein  specified  but,  unless
otherwise agreed upon in writing by Landlord and Tenant,  at a monthly Base Rent
equal to one hundred  fifty  percent  (150%) of the monthly  Base Rent in effect
immediately  prior to the Expiration Date.  Acceptance by Landlord of Rent after
the Expiration Date without  Landlord's  prior consent to Tenant's  holding over
shall not  constitute  a consent by Landlord to any such  tenancy  from month to
month or result in any other tenancy or any renewal of the Term.  The provisions
of this  Section 20 are in addition to, and do not affect,  Landlord's  right of
re-entry  or other  rights  hereunder  or provided  by law,  including,  without
limitation,  the right to recover  damages for any period when Tenant holds over
without Landlord's prior consent.

21. ENTRY BY LANDLORD
         Landlord reserves,  and shall at all times have, the right to enter the
Premises to inspect the  Premises;  to supply  janitorial  service and any other
service to be provided by Landlord  hereunder;  to read any meters;  to show the
Premises to prospective  purchasers,  lenders or tenants;  to determine  whether
Tenant is in compliance with all of its obligations  hereunder;  to post notices
of nonresponsibility;  to erect scaffolding and other necessary structures in or
through the Premises where  reasonably  required by the character of the work to
be performed;  to alter,  repair and improve the  Building,  the Premises or any
part  of  either;  to make  additions  to and  build  additional  floors  on the
Building;  to alter,  repair,  or improve the size,  arrangement  or location of
entrances or passageways,  doors and doorways,  electrical,  plumbing,  heating,
ventilating and air conditioning  equipment and systems,  corridors,  elevators,
stairs and toilets,  and all other  facilities  serving the  Building,  wherever
located,  and  whether  or not such  alterations,  repairs or  improvements  are
required by any governmental agency, entity,  ordinance,  rule or regulation; to
construct other buildings or improvements on land adjacent to the Building;  and
to change the use of all or any part of the  Building,  other than the Premises,
provided that Landlord shall use reasonable efforts to minimize any interference
with  Tenant's use and enjoyment of the Premises  caused by any such entry.  The
exercise  by  Landlord  of any of the  foregoing  rights  shall not be deemed an
actual or constructive  eviction of Tenant, shall not result in any liability of
Landlord to Tenant  except for the normal  negligence  or willful  misconduct of
Landlord in the  exercise  of such  rights and shall not  entitle  Tenant to any
reduction  of Rent;  provided,  however,  that in the event that the exercise by
Landlord of any of the  foregoing  rights  shall  result in a  permanent  actual
decrease in the rentable area of the Premises, then the Rent shall be reduced in
proportion to such decrease.  Tenant waives any claim for damages for any injury
or  inconvenience  to or  interference  with  Tenant's  business,  any  loss  of
occupancy or quiet  enjoyment of the Premises,  and any other loss occasioned by
such entry. For each of the foregoing purposes, Landlord shall at all times have
and retain a key with which to unlock all of the
                                      

                                      18






doors in, on and about the Premises  (excluding doors to Tenant's vaults,  safes
and similar areas  designated in writing by Tenant in advance).  Landlord  shall
have the right to use any and all means that  Landlord  may deem  proper to open
such doors in an  emergency in order to obtain  entry to the  Premises,  and any
entry to the Premises  obtained by Landlord by any of such means,  or otherwise,
shall not under any  circumstances  be  construed  or deemed to be a forcible or
unlawful  entry into or a detainer  of the  Premises or an  eviction,  actual or
constructive, of Tenant from all or any, portion of the Premises.

22. DAMAGE AND DESTRUCTION

         (a) If the Premises or the Building is damaged by fire, earthquake, act
of God, the elements or other casualty, Landlord shall promptly, but in no event
later than thirty (30) days following the occurrence of such damage, give notice
to Tenant stating the number of days, in Landlord's  reasonable  judgment,  that
will be  necessary to repair such damage.  If such damage can  substantially  be
repaired  within two  hundred  seventy  (270)  days  after the damage  occurred,
Landlord shall  commence to repair such damage  promptly and shall complete such
repairs as soon as reasonably possible thereafter,  subject to the provisions of
this Section 22. During the making of such repairs by Landlord, this Lease shall
remain in full force and effect,  except that if the damage is not the result of
the negligence or  intentional  misconduct of Tenant,  its agents,  contractors,
employees  or  invitees,  Tenant shall be entitled to an abatement of Base Rent,
while such repair is being made, in the proportion that the Rentable Area of the
Premises  rendered  unusable by such damage bears to the total  Rentable Area of
the Premises. If such damage cannot substantially be repaired within two hundred
seventy (270) days after the damage, as evidenced by a statement from Landlord's
architect or general  contractor to such effect,  Landlord and Tenant shall each
have  the  option,  exercisable  at any  time  within  thirty  (30)  days  after
Landlord's  notice to Tenant as provided  above,  to terminate this Lease.  This
option to terminate shall be exercised,  if at all, by Landlord or Tenant giving
notice to the other party  within such thirty (30) day period of its election to
terminate  this  Lease,  with  such  termination  to be  effective  as of a date
specified in such notice no later than thirty (30) days after the giving of such
notice to the other party.  If both parties elect to terminate  this Lease,  the
termination  date shall be the date  specified in Landlord's  notice.  If either
Landlord  or Tenant  elects to  terminate  this Lease by giving  such  notice of
termination  to the other  party,  this Lease and all  interest of Tenant in the
Premises  shall  terminate on the date  specified in such notice,  and the Rent,
proportionately  abated as provided above,  shall be paid up to the date of such
termination,  with Landlord refunding to Tenant any Rent previously paid for any
period of time  subsequent  to such date.  If neither  party elects to terminate
this Lease as provided above,  Landlord promptly shall repair such damage,  with
this  Lease  continuing  in full  force  and  effect,  but with  the  Base  Rent
proportionately  abated as provided above. If Landlord is required to repair the
Premises or the  Building  under this Section 22,  Landlord  shall repair at its
cost any injury or damage to the Building and the leasehold  improvements in the
Premises,  and Tenant shall be responsible for and shall repair at its sole cost
all trade  fixtures,  equipment,  furniture and other  property of Tenant in the
Premises. Tenant waives any right to terminate this 
                                       

                                      19






Lease under Sections  1932(2) and 1933(4) of the California Civil Code, or under
any similar Laws now or hereafter in effect. Tenant shall not be entitled to any
compensation  or  damages  from  Landlord  for damage to any of  Tenant's  trade
fixtures,  personal property or equipment, for loss of use of all or any part of
the  Premises,  for any  damage to  Tenant's  business  or  profits,  or for any
disturbance to Tenant caused by any casualty or the  restoration of the Premises
following such casualty.

         (b) Notwithstanding the provisions of Subsection 22(a) above,  Landlord
also shall have the option to  terminate  this Lease,  exercisable  by notice to
Tenant  within  thirty  (30) days of damage or  destruction  to the  Premises or
Building, in each of the following instances:

               (i) If more than fifty  percent (50%) of the Rentable Area of the
                   Building is destroyed, regardless of whether the Premises 
                   are damaged.

               (ii) If the  Premises  are  substantially  damaged  or destroyed
                   during the last twelve (12) months of the Term.

               (iii)  If  the   uninsured   cost  of  repairing  any  damage  or
                   destruction (excluding the amount of any applicable
                   deductible,  in the case of an insured loss) exceeds ten
                   percent (10%) of the full replacement cost of the 
                   Building, including, without limitation, all leasehold 
                   improvements therein.

23. DEFAULT

         The  occurrence  of any  one or  more  of the  following  events  shall
constitute a default and breach of this Lease by Tenant (an "Event of Default"):

         (a) The vacation or  abandonment of the Premises by Tenant for a period
of five (5) days or longer.

         (b) The  failure of Tenant to pay any  installment  of Rent within five
(5) business days after such installment is due.

         (c) The failure by Tenant to observe or perform  any of the  provisions
of this Lease to be  observed  or  performed  by Tenant,  other than the failure
described in Subsection 23(b), where such failure shall continue for a period of
fifteen (15) days after notice of such failure by Landlord to Tenant;  provided,
however,  that if the nature of Tenant's  default is such that more than fifteen
(15) days are reasonably  required for its cure, then Tenant shall not be deemed
to be in default if Tenant  commences  such cure  within such  fifteen  (15) day
period and thereafter diligently prosecutes such cure to completion.

         (d)  The  making  by  Tenant  of  any  general  assignment  or  general
arrangement  for the  benefit  of  creditors;  or the filing of any action by 
or against Tenant under any

                                       20







insolvency,  bankruptcy,  reorganization,  moratorium  or  other  debtor  relief
statute,  whether now or hereafter existing (unless,  in the case of such action
taken against  Tenant,  the action is dismissed  within sixty (60) days); or the
appointment of a trustee or a receiver to take possession of  substantially  all
of Tenant's  assets  located at the  Premises  or of  Tenant's  interest in this
Lease,  where possession is not restored to Tenant within thirty (30) days after
such  taking;  or  the  attachment,  execution  or  other  judicial  seizure  of
substantially  all of  Tenant's  assets  located at the  Premises or of Tenant's
interest in this Lease,  where such  seizure is not  discharged  within ten (10)
days; or the admission by Tenant in writing of its inability to pay its debts as
they become due.

24. REMEDIES IN DEFAULT

         Upon the  occurrence of any Event of Default,  Landlord may at any time
thereafter,  with or without notice or demand,  without limitation on Landlord's
exercise of any right or remedy that  Landlord  may have by reason of such Event
of Default,  and in addition to any other right or remedy  Landlord  may have at
law or in equity:

         (a)  Terminate  this Lease and  recover  damages as provided by Section
1951.2 of the California Civil Code, including,  but not limited to, recovery of
the worth at the time of award of the  amount by which the  unpaid  Rent for the
balance of the Term after the time of award  exceeds  the amount of rental  loss
for the same period that Tenant proves could have been  reasonably  avoided,  as
computed pursuant to subsection (b) of Section 1951.2;

         (b) Continue this Lease in effect and enforce all of Landlord's  rights
and remedies  under this Lease,  as provided by Section 1951.4 of the California
Civil  Code,  including,  without  limitation,  the right to recover  Rent as it
becomes  due,  for so long as  Landlord  does not  terminate  Tenant's  right to
possession; acts of maintenance or preservation by Landlord, efforts by Landlord
to  relet  or  sublet  the  Premises,  or the  appointment  of a  receiver  upon
Landlord's  initiative  to protect  its  interest  under  this  Lease  shall not
constitute a termination of Tenant's right to possession;

         (c)  Sublet  all or any part of the  Premises  for  such  term or terms
(which may extend  beyond  the  Term),  at such rent and on such other  terms as
Landlord  in its sole  discretion  may deem  advisable,  with the  right to make
alterations  and repairs to the  Premises,  all as  attorney-in-fact for  Tenant
pursuant to Subsection 24(f);

         (d) Enter the Premises and remove  therefrom  all persons and property,
store such  property in a public  warehouse  or elsewhere at the cost of and for
the account of Tenant,  and sell such property and apply the proceeds  therefrom
pursuant  to  applicable  California  law,  all as  attorney-in-fact  for Tenant
pursuant to Subsection 24(f); and

         (e)  Take  all  steps  necessary  or  appropriate  to  have a  receiver
appointed for Tenant to take  possession  of the  Premises,  to apply any rental
collected  from the  Premises  and to  exercise  all other  rights and  remedies
granted to Landlord as attorney-in-fact for Tenant pursuant to Subsection 24(f).


                                       21







         Additionally.  Landlord shall have the following  rights,  powers,  and
remedies:

         (f) For all  purposes set forth in  Subsections  24(c)  through  24(e),
Tenant irrevocably  appoints and constitutes  Landlord as  attorney-in-fact  for
Tenant,  with power of  substitution.  No taking  possession  of the Premises by
Landlord,  as attorney-in-fact  for Tenant, shall be construed as an election on
Landlord's part to terminate this Lease unless a written notice of such election
is  given  to  Tenant.   Notwithstanding  any  subletting  by  Landlord  without
termination under Subsection 24(c), Landlord may at any time thereafter elect to
terminate this Lease for any previous Event of Default.

         (g) In the  case of any  Event  of  Default  in the  payment  of  Rent,
Landlord shall receive interest on all unpaid Rent at a rate equal to the lesser
of (i) the rate of interest  publicly  announced by Bank of America NT&SA in San
Francisco, California, as its "reference rate" (or any successor interest rate),
plus five  percent  (5%),  which rate on unpaid Rent shall be adjusted as of the
effective date of any change in such reference (or successor)  rate, or (ii) the
highest rate permitted by law.

25. EMINENT DOMAIN

         (a) If all of the  Premises  are  condemned  or taken in any manner for
public or  quasi-public  use,  including,  but not limited to, a  conveyance  or
assignment in lieu of a condemnation or taking,  this Lease shall  automatically
terminate  as of the  earlier of the date of the vesting of title or the date of
dispossession of Tenant as a result of such condemnation or taking. If a portion
of the  Premises  is so  condemned  or taken,  this  Lease  shall  automatically
terminate,  as to the portion of the Premises so  condemned or taken,  as of the
earlier  of the date of the  vesting  of title or the date of  dispossession  of
Tenant as a result of such  condemnation or taking. If a portion of the Building
is condemned or taken so as to require,  in the reasonable judgment of Landlord,
a substantial  alteration  or  reconstruction  of the remaining  portions of the
Building,  this Lease may be  terminated  by Landlord,  as of the earlier of the
date of the vesting of title or the date of  dispossession of Tenant as a result
of such  condemnation  or  taking,  by notice to Tenant  within  sixty (60) days
following  notice to Landlord of the date on which such vesting or dispossession
will occur. If a material portion of the Premises is condemned or taken so as to
render  the  remaining  portion  unusable  by  Tenant,  in  Tenant's  reasonable
judgment,  this Lease may be terminated by Tenant, as of the earlier of the date
of the  vesting of title or the date of  dispossession  of Tenant as a result of
such  condemnation  or  taking,  by notice to  Landlord  within  sixty (60) days
following  notice to Tenant of the date on which such  vesting or  dispossession
will occur.

         (b) Landlord shall be entitled to the entire award in any  condemnation
proceeding  or other  proceeding  for  taking for  public or  quasi-public  use,
including,  without  limitation,  any award made for the value of the  leasehold
estate created by this Lease. No award for any partial or entire taking shall be
apportioned,  and Tenant  assigns to Landlord any award that may be made in such
condemnation or taking, together with any


                                       22







and all rights of Tenant now or hereafter arising in or to such award; provided.
however,  that nothing  contained  herein  shall be deemed to give  Landlord any
interest  in, or to  require  Tenant to assign to  Landlord,  any award  made to
Tenant specifically for its relocation expenses, the taking of personal property
and fixtures  belonging to Tenant,  or the interruption of or damage to Tenant's
business.
        
         (c) In the event of a  partial  condemnation  or  taking  that does 
not result in a termination of this Lease as to the entire Premises, Base 
Rent shall abate in proportion to the portion of the Premises taken by such 
condemnation or taking.

         (d) If all or any  portion of the  Premises is  condemned  or taken for
public or quasi-public use for a limited period of time, this Lease shall remain
in full force and effect and Tenant shall  continue to observe all of the terms,
conditions and covenants of this Lease; provided,  however, that Base Rent shall
abate during such limited  period in  proportion  to the portion of the Premises
that is rendered  untenantable and unusable as a result of such  condemnation or
taking.  Landlord  shall  be  entitled  to  receive  the  entire  award  made in
connection with any such temporary condemnation or taking.

         (e) Tenant waives and releases any right to terminate  this Lease under
Sections  1265.120 and 1265.130 of the California  Code of Civil  Procedure,  or
under any similar Laws now or hereafter in effect.

26. ESTOPPEL CERTIFICATE

         At any time and from  time to  time,  and no later  than ten (10)  days
after notice from  Landlord,  Tenant shall  promptly  execute,  acknowledge  and
deliver to Landlord,  and, at Landlord's request, to any prospective  purchaser,
ground  lessor,  or  mortgagee,  a  certificate  certifying  (a) that Tenant has
accepted  the  Premises  (or,  if Tenant  has not done so,  that  Tenant has not
accepted the Premises and  specifying the reasons for not accepting  them);  (b)
the Commencement and Expiration  Dates; (c) that this Lease is unmodified and in
full force and effect (or, if there have been modifications,  that this Lease is
in full force and effect as  modified  and  stating  the date and nature of each
modification);  (d) the dates,  if any, to which Rent has been paid; (e) whether
or not there are then existing any defenses  against the  enforcement  of any of
the  obligations  of Tenant  under  this  Lease  (and,  if so,  specifying  such
defenses);  (f) whether or not there are then  existing any defaults by Landlord
in the performance of its obligations  under this Lease (and, if so,  specifying
such  defaults);  and (g) such other matters as may be  reasonably  requested by
Landlord.  Any  such  certificate  may be  relied  upon by  Landlord  and by any
prospective purchaser, ground lessor or mortgagee considering the purchase of or
a loan on all or any part of the  Building or any  interest  therein.  If Tenant
fails to deliver any such  certificate  within ten (10) days of receipt,  Tenant
agrees and acknowledges  that Landlord,  and any prospective  purchaser,  ground
lessor, or mortgagee,  may rely on all information set forth in such certificate
as true and correct.  Tenant shall indemnify  Landlord against and hold Landlord
harmless from all costs, damages, expenses, liabilities and fees, including,

                                       23






without limitation, reasonable attorneys' fees and any consequential damages or
lost profits,  arising from or in any way related to or connected  with Tenant's
failure to  deliver  any such  certificate  within  the time  specified  in this
Section 26.

27. AUTHORITY OF TENANT
         If Tenant is a corporation or partnership,  each individual  executing,
this  Lease  on  behalf  of  Tenant  represents  and  warrants  that  he is duly
authorized to execute and deliver this Lease on behalf of Tenant, that Tenant is
a duly  authorized  and  existing  entity,  that  Tenant  has  qualified  and is
qualified to do business in California, that Tenant has full right and authority
to enter into this Lease,  and that this Lease is binding upon such  corporation
or  partnership  in  accordance  with the terms of this Lease.  Upon  Landlord's
request,  Tenant shall provide Landlord with evidence reasonably satisfactory to
Landlord confirming the foregoing representations and warranties.

28. BROKERS

         Tenant warrants that it has had no dealings with any real estate broker
or agent in connection  with the  negotiation of this Lease,  excepting only the
brokers specified in the Basic Lease  Information,  and Tenant knows of no other
real estate broker or agent who is entitled to a commission  in connection  with
this Lease.  Tenant  agrees to  indemnity  Landlord  against  and hold  Landlord
harmless  from  any and all  claims,  demands,  losses,  liabilities,  lawsuits,
judgments,  costs and  expenses  (including  reasonable  attorneys'  fees)  with
respect to any leasing commission or equivalent compensation alleged to be owing
on account of Tenant's  dealings with any real estate broker or agent other than
as specified in the Basic Lease Information.

29. DEFAULT BY LANDLORD

         Landlord  shall not be in  default  unless  Landlord  fails to  perform
obligations required of Landlord within a reasonable time, but in no event later
than thirty (30) days after notice by Tenant to Landlord specifying the 
nature of the obligation Landlord has failed to perform; provided, however, 
that if the nature of  Landlord's  obligation  is such that more than  thirty 
(30) days are required  for  performance,  then  Landlord  shall not be in 
default if Landlord commences  performance  within  such  thirty  (30)  day  
period  and  thereafter diligently prosecutes such performance to completion.

30. LANDLORD'S OPTION TO RELOCATE TENANT

         Landlord and Tenant agree that at any time after Tenant's  execution of
this Lease, Landlord shall have the right, upon providing Tenant at least thirty
(30) days' prior notice,  to provide  Tenant with space on a higher floor with a
comparable  view in the Building of  approximately  the same size and quality as
the Premises (including a comparable level of tenant  improvements  completed at
Landlord's  cost) and to move Tenant to such new space.  Landlord  shall arrange
for moving Tenant and shall pay the costs of actually
                                    

                                      24





moving Tenant to such new space and incidental  costs  associated  therewith (to
include,  but not limited to, telephone  installation and computer cabling).  In
the event Landlord  moves Tenant to such new space,  this Lease and each and all
of its terms, covenants and conditions shall remain in full force and effect and
thereupon be deemed  applicable  to such new space,  except that a revised floor
plan shall  become part of this Lease and shall  reflect the location of the new
space.  If Tenant refuses to permit Landlord to move Tenant to such new space at
the end of such  thirtv  (30) day  period,  Landlord  shall  have  the  right to
terminate  this Lease by notice given to Tenant  within ten (10) days  following
the end of such thirty (30) day period, which termination shall be effective one
hundred twenty (120) days after the date of the original notice of relocation by
Landlord.  Landlord will provide  Tenant with thirty (30) days advance notice of
the actual date of relocation and will accomplish  relocation without disruption
to Tenant's normal business operation.

31. RENEWAL OPTION

         Tenant shall have one (1) option (the  "Renewal  Option") to extend the
Term for a period of five (5) years  beyond the  Expiration  Date (the  "Renewal
Term"). The Renewal Option shall be effective only if an Event of Default is not
then occurring under this Lease,  nor is any event then occurring which with the
giving of notice or the passage of time, or both,  would  constitute an Event of
Default  hereunder,  either at the time of exercise of the Renewal Option or the
time of  commencement of the Renewal Term. The Renewal Option must be exercised,
if at all, by written  notice from Tenant to Landlord given not more than twelve
(12) months nor less than nine (9) months prior to the expiration of the initial
Term.  Any such notice  given by Tenant to  Landlord  shall be  irrevocable.  If
Tenant fails to exercise the Renewal  Option in a timely  manner as provided for
above, the Renewal Option shall be void. The Renewal Term shall be upon the same
terms and  conditions as the initial Term,  except that (i) the annual Base Rent
during the Renewal Term shall be equal to the  prevailing  market rate for space
in the San  Francisco  Financial  District  comparable  to the Premises in size,
condition,  quality and type at the  commencement  of the Renewal Term, and (ii)
there shall be no further renewal option.  As used herein,  the term "prevailing
market rate" shall mean the base annual rental for such comparable space, taking
into  account  any  additional  rental and all other  payments  and  escalations
payable  hereunder  and by tenants  under leases of such  comparable  space.  If
Tenant disputes  Landlord's  determination of the prevailing market rate, Tenant
shall so notify the Landlord within ten (1O) days following Landlord's notice to
Tenant of the  prevailing  market  rate and such  dispute  shall be  resolved as
follows:

         (a) Within thirty (30) days  following  Tenant's  notice to Landlord of
Tenant's  dispute of Landlord's  determination  of the  prevailing  market rate,
Landlord  and  Tenant  shall  meet no less  than two (2)  times,  at a  mutually
agreeable time and place, to attempt to resolve any such disagreement.


                                       25







         (b) If within this thirty (30) day period  Landlord  and Tenant  cannot
reach  agreement as to the  prevailing  market rate,  they shall each select one
appraiser to determine the prevailing  market rate.  Each such  appraiser  shall
arrive  at a  determination  of  the  prevailing  market  rate  and  submit  his
conclusions  to Landlord and Tenant within thirty (3O) days of the expiration of
the thirty (30) day consultation period described in paragraph (a) above.

         (c) If only one  appraisal  is  submitted  within  the  requisite  time
period,  it shall be deemed to be the prevailing market rate. If both appraisals
are submitted  within such time period,  and if the two  appraisals so submitted
differ by less than ten (10)  percent of the higher of the two,  the  average of
the two shall be the  prevailing  market rate. If the two  appraisals  differ by
more than ten (1O)  percent  of the higher of the two,  then the two  appraisers
shall  immediately  select a third appraiser who will within thirty (30) days of
his selection make a determination of the prevailing market rate and submit such
determination to Landlord and Tenant. This third appraisal will then be averaged
with the  closer of the two  previous  appraisals  and the  result  shall be the
prevailing market rate.

         All appraisers  specified pursuant hereto shall be licensed real estate
brokers in the State of California with not less than five (5) years' experience
appraising office properties in the San Francisco Financial District. Each party
shall pay the cost of the appraiser selected by such party and one-half (1/2) of
the cost of the third  appraiser plus one-half (1/2) of any other costs incurred
in connection with the appraisal.

32. EXPANSION OPTION

         Tenant  shall have one (1) option  (the  "Expansion  Option")  to lease
Suite 720 in the Building (the "Expansion Premises"),  comprising  approximately
1,708 rentable  square feet,  upon the  expiration or sooner  termination of the
existing lease covering the Expansion Premises (the "Existing  Lease").  Subject
to the terms of the immediately  succeeding sentence,  Tenant shall exercise the
Expansion Option by written notice (the "Expansion Exercise Notice") to Landlord
given not later than July 1, 1999 and shall commence  occupancy in the Expansion
Premises  on a date  specified  by  Landlord,  which  date  shall be on or about
February  1,  2000.  Notwithstanding  the  foregoing,  in the event that for any
reason the Existing Lease shall terminate prior to its stated  expiration  date,
then Landlord shall notify Tenant of such occurrence and of the revised date the
Expansion Premises shall be available for occupancy by Tenant,  whereupon Tenant
shall have a period of fifteen ( 15) days  after its  receipt of such  notice to
deliver the Expansion Exercise Notice to Landlord. The Expansion Option shall be
effective only if an Event of Default is not occurring under this Lease,  nor is
any event  occurring  which with the giving of notice or the passage of time, or
both,  would  constitute  an Event of Default  hereunder,  either at the time of
exercise of the Expansion  Option or the time of commencement of this Lease with
respect to the Expansion Premises. Any Expansion Exercise Notice given by Tenant
to Landlord  shall be  irrevocable.  If Tenant fails to exercise  the  Expansion
Option in a timely manner as provided for above, the Expansion


                                       26








Option shall be void.  In the event Tenant  exercises  the  Expansion  Option as
provided herein, then Landlord and Tenant shall promptly execute an amendment to
this Lease adding the Expansion Premises to the premises demised hereby,  except
that (i) the annual Base Rent for the Expansion  Premises  shall be equal to the
prevailing  market  rate  for  space  in the San  Francisco  Financial  District
comparable to the Expansion Premises in size, condition, quality and type at the
commencement of Tenant's  occupancy of the Expansion  Premises (as determined in
accordance with Section 31 above), (ii) Tenant's lease of the Expansion Premises
shall  expire  on the  Expiration  Date of this  Lease,  (iii) the Base Year for
Expenses and Taxes  attributable to the Expansion Premises shall be the calendar
year in which Tenant's lease of the Expansion Premises commences,  (iv) Tenant's
Expense Share and Tenant's Tax Share shall be increased proportionately, and (v)
Landlord  shall  provide  Tenant with a tenant  improvement  allowance  of Eight
Thousand Five Hundred  Dollars  ($8,500.00)  for  improvements  in the Expansion
Premises.

33. GENERAL PROVISIONS

         (a) Termination of Original Lease.  Concurrently  with the commencement
of the Term and the delivery of possession of the Premises to Tenant, the Office
Lease by and between  Landlord and Tenant,  dated as of February 12, 1988, shall
terminate and shall be of no further force or effect.

         (b)  Waiver.  The  waiver by  Landlord  or Tenant of the other  party's
failure to perform or observe any provision of this Lease shall not be deemed to
be a continuing  waiver of such provision or a waiver of any subsequent  failure
of  Landlord  or  Tenant  to  perform  or  observe  the same or any  other  such
provision, and no custom or practice that may develop between the parties during
the Term shall be deemed a waiver of, or shall in any way  affect,  the right of
Landlord or Tenant to insist upon  performance and observance by the other party
in strict accordance with the terms of this Lease. The subsequent  acceptance of
Rent  hereunder by Landlord  shall not be deemed to be a waiver of any preceding
failure of Tenant to perform or observe any provision of this Lease,  other than
the failure of Tenant to pay the particular  Rent so accepted,  irrespective  of
any knowledge on the part of Landlord of such preceding failure of Tenant at the
time of acceptance of such Rent.

         (c) Notices. Any bills, statements, notices, demands, requests or other
communications given or required to be given under this Lease shall be effective
only if rendered or given in writing, sent by registered,  certified, or express
mail or delivered personally, (i) to Tenant (A) at Tenant's address set forth in
the Basic Lease Information,  if sent prior to Tenant's taking possession of the
Premises,  (B) at  Tenant's  address  at the  Building,  if sent  subsequent  to
Tenant's taking possession of the Premises,  or (C) at any place where Tenant or
any agent or employee  of Tenant may be found,  if sent  subsequent  to Tenant's
vacating,  deserting,  abandoning or surrendering the Premises; (ii) to Landlord
at  Landlord's  address  set forth in the Basic Lease  Information;  or (iii) to
Tenant or

                                       27






Landlord at such other  address as either party may designate as its new address
for such purpose by notice given to the other in accordance  with the provisions
of this  Subsection  33(c). If Tenant is notified of the identity and address of
Landlord's  mortgagee or underlying lessor,  Tenant shall give to such mortgagee
or ground or underlying lessor notice of any default by Landlord under the terms
of this  Lease,  in writing  sent by  registered  or  certified  mail,  and such
mortgagee or ground or underlying lessor shall be given a reasonable opportunity
to cure such  default  prior to  Tenant's  exercising  any remedy  available  to
Tenant.

         (d)  Examination of Lease.  Submission of this instrument to Tenant for
its execution does not constitute a reservation or option for a lease,  and this
instrument  is not and  shall  not be  deemed  to be  effective  as a  lease  or
otherwise until its execution and delivery by both Landlord and Tenant.

         (e)  Captions.  The  captions  of this  Lease  are for  convenience  of
reference only and shall have no effect upon the construction or  interpretation
of any provision of this Lease.
      
         (f) Definitions. The words "Landlord" and "Tenant" as used herein shall
include  the plural as well as the  singular.  Words  used in the neuter  gender
include  the  masculine  and  feminine.  If  Landlord or Tenant is more than one
entity,  the obligations under this Lease imposed on Landlord or Tenant shall be
joint and several.

         (g) Time.  Time is of the essence of this Lease and each and all of its
provisions in which performance is a factor.

         (h)  Successors  and  Assigns.  The  terms,  covenants  and  conditions
contained  in this Lease  shall bind and inure to the  benefit of  Landlord  and
Tenant and, except as otherwise provided herein, their personal representatives,
successors and assigns;  provided,  however,  that upon the sale,  assignment or
transfer  by  Landlord  named  herein  (or by any  subsequent  Landlord)  of its
interest in the Building as owner or lessor, including any transfer by operation
of law,  Landlord  named herein (or any subsequent  Landlord)  shall be relieved
from all  subsequent  obligations  and  liabilities  under this  Lease,  and all
obligations and liabilities subsequent to such sale, assignment or transfer (but
not any  obligations or liabilities  that have accrued prior to the date of such
sale,  assignment  or transfer)  shall be binding upon the grantee,  assignee or
transferee of such interest,  and any such grantee,  assignee or transferee,  by
accepting  such  interest,  shall be  deemed  to have  assumed  such  subsequent
obligations  and  liabilities.  A lease of the entire Building to a person other
than for such person's  occupancy  shall be deemed a transfer within the meaning
of this Subsection 33(h).  Tenant agrees to execute any and all documents deemed
necessary or appropriate by Landlord to evidence the foregoing.

         (i)  Recordation.  Tenant  shall not record  this Lease or a short form
memorandum of this Lease without the prior consent of Landlord.

                                       28


         (j) Quiet Possession.  Upon Tenant's paying the Rent reserved hereunder
and observing and performing  all of the provisions of this Lease,  Tenant shall
have quiet  possession  of the Premises for the entire Term,  subject to all the
provisions of this Lease.

         (k) Prior  Agreements.  This Lease  contains all of the  agreements  of
Landlord  and Tenant with  respect to all matters  covered or  mentioned in this
Lease, and no prior agreements or understandings  pertaining to any such matters
shall be effective for any purpose. No provision of this Lease may be amended or
added to except by an  agreement  in  writing  signed  by the  parties  or their
successors in interest.  Tenant  acknowledges  that in executing and  delivering
this  Lease,  Tenant is not  relying  on any  verbal or  written  understanding,
promise or  representation  outside the scope of this Lease and not described or
referred to herein.

         (l) Attorneys'  Fees. In the event of any action or proceeding  brought
by either party against the other under this Lease,  the prevailing  party shall
be entitled to recover all costs and expenses,  including,  without  limitation,
its  attorneys'  fees, for such action or proceeding in such amount as the court
or arbitrator may adjudge  reasonable.  The prevailing party shall be determined
by the court or  arbitrator  based upon an  assessment  of which  party's  major
arguments  made or positions  taken in the action or proceeding  could fairly be
said to have  prevailed  over the other party's major  arguments or positions on
major disputed  issues in the court's or arbitrator's  decision.  If Landlord is
named as a defendant in any suit brought against Tenant in connection with or in
any way arising out of this Lease or Tenant's use or occupancy of the  Premises,
Tenant shall pay Landlord's costs and expenses,  including,  without limitation,
reasonable attorneys' fees, incurred in such suit.

         (m) Subordination;  Attornment. Without the necessity of any additional
document being executed by Tenant for the purpose of effecting a  subordination,
this  Lease  shall be  subject  and  subordinate  at all times to (i) all ground
leases  or  underlying  leases  that may now  exist  or  hereafter  be  executed
affecting the Building or the land upon which the Building is situated, or both,
and (ii  the  lien of any  mortgage  or deed of  trust  that  may now  exist or
hereafter be executed in any amount for which the Building,  the land upon which
the Building is situated, any ground leases or underlying leases of the Building
or such land, or Landlord's interest or estate in any of such items is specified
as security,  provided that the lessees under such ground or underlying  leases,
and the mortgagees or  beneficiaries  named in such mortgages or deeds of trust,
shall agree to recognize the interest of Tenant under this Lease in the event of
foreclosure,  if Tenant is not then in default.  Notwithstanding  the foregoing,
Landlord shall have the right to subordinate or cause to be subordinated to this
Lease any such ground  leases or  underlying  leases or any such  liens.  In the
event that any ground lease or underlying lease terminates for any reason or any
mortgage or deed of trust is foreclosed  or a conveyance in lieu of  foreclosure
is made for any reason, Tenant shall, notwithstanding any subordination,  attorn
to and become the Tenant of the successor in interest to Landlord, at the option
of such  successor  in  interest.  Tenant  covenants  and agrees to execute  and
deliver, upon

                                       29







demand  by  Landlord  and in the form  requested  by  Landlord,  any  additional
documents evidencing the priority or subordination of this Lease with respect to
any such ground  lease or  underling  lease or the lien of any such  mortgage or
deed of trust.

         (n)  Names.  Tenant  shall not  use  the name of the Building or of the
development  in which the Building is situated for any purpose  other than as an
address of the business to be conducted by Tenant in the Premises.

         (o)  Severability.  Any  provision of this Lease that shall prove to be
invalid,  void,  illegal  or  unenforceable  shall in no way  affect,  impair or
invalidate  any other  provisions of this Lease,  and such other  provisions and
this Lease shall remain in full force and effect.

         (p)  Cumulative  Remedies.  No remedy or  election  hereunder  shall be
deemed  exclusive but shall,  wherever  possible,  be cumulative  with all other
remedies or elections at law or in equity.

         (q) Choice of Law.  This Lease shall be governed  by and  construed  in
accordance with the Laws of the State of California.

         (r) Signs and Building  Name.  Tenant shall not place any sign upon the
Premises  or  Building  without  Landlord's  prior  consent.  All signs to which
Landlord  so  consents  and which are placed by Tenant  upon or in the  Premises
shall  comply  in  all  respects  with  size,  design,  lettering  and  material
guidelines established by Landlord for the Building. Landlord reserves the right
to  change or alter  such  guidelines  at such  times  and for such  tenants  as
Landlord may determine in its sole  discretion.  The name of the Building may be
changed from time to time in Landlord's sole discretion.

         (s) No  Merger.  The  voluntary  or other  surrender  of this  Lease by
Tenant, or a mutual cancellation of this Lease by Landlord and Tenant, shall not
constitute a merger of Tenant's estate and Landlord's estate, and, at the option
of  Landlord,  shall  either (i)  terminate  any or all  existing  subleases  or
subtenancies  or (ii)  operate as an  assignment  to Landlord of any or all such
subleases or subtenancies.

         (t) Light and Air.  Tenant  covenants  and agrees that no diminution or
shutting  off of light,  air or view that may result  from the  erection  of any
structure (whether or not by Landlord) on property adjacent to the Building, and
no closing or shutting  off of any windows in the  Premises or the Building as a
result of the  erection  of any such  structure,  shall in any way  affect  this
Lease,  entitle  Tenant  to any  reduction  of Rent  hereunder  or result in any
liability of Landlord to Tenant, of any type or nature whatsoever.

         (u) Confidentiality.  Tenant shall not disclose the terms of this Lease
to any unrelated third party except as required in the normal course of Tenant's
business (e.g., if necessary to obtain financing).


                                       30






         (v) Landlord's Review. The review, approval,  inspection or examination
by  Landlord  of any item to be  reviewed,  approved,  inspected  or examined by
Landlord  under  the  terms of this  Lease or the  attached  exhibits  shall not
constitute  the  assumption  of any  responsibility  by Landlord  for either the
accuracy or the  sufficiency  of any such item or the quality or  suitability of
such  item for its  intended  use.  Any such  review,  approval,  inspection  or
examination  by  Landlord  is for the  sole  purpose  of  protecting  Landlord's
interests in the Building and under this Lease, and no third parties, including,
without  limitation,  Tenant or any person or entity  claiming  through or under
Tenant, or the contractors,  agents, servants,  employees, visitors or licensees
of Tenant or any such person or entity, shall have any rights arising out of any
such review, approval, inspection or examination.

                               LANDLORD: THE CANADA LIFE ASSURANCE 
COMPANY
                                         By:
                                            ------------------------------
                                         Its:
                                             -----------------------------
                                 TENANT: FORECROSS CORPORATION,
                                         a California corporation
                                         By: /s/ Kim O. Jones
                                            ------------------------------
                                         Its: President
                                            ------------------------------







                                       31







                            90 NEW MONTGOMERY STREET
                             OFFICE LEASE EXHIBIT A
                        FLOOR PLANS CONSISTING OF 1 PAGE







EXHIBIT A

                               [ - FLOOR PLAN - ]



                               90 NEW MONTGOMERY


                            90 NEW MONTGOMERY STREET
                                  OFFICE LEASE
                                    EXHIBIT B
                             INDEX OF DEFINED TERMS

DEFINITIONS                                                 SECTION OR 
EXHIBIT
Additional Charges......................................          5(b)
Advance Rent............................................          5(c)
Alterations.............................................          10(a)
Alterations Allowance...................................          10(f)
Approved Alterations....................................          10(f)
Assignment..............................................          13(a)
Base Expenses...........................................          7(d)(iv)
Base Rent...............................................          5(a)
Base Taxes..............................................          7(d)(v)
Base Year...............................................          7(d)(iii)
Basic Lease Information.................................          1
Building................................................          2
Commencement Date.......................................          3
Common Areas............................................          8(c)
Computation Year........................................          7(d)(viii)

                                       B-1






DEFINITIONS                                                 SECTION OR 
EXHIBIT
Event of Default..........................................             23
Expenses..................................................             7(d)(i)
Expiration Date...........................................             3
HVAC......................................................             17(a)
Landlord..................................................             1
Laws......................................................             9
Lease.....................................................             1
Premises..................................................             2
Rent......................................................             5(b)
Rentable Area.............................................             2
Security Deposit..........................................             6
Standard Building Hours...................................             17(a)
Sublease..................................................             13(a)
Taxes.....................................................             7(d)(ii)
Tenant....................................................             1
Tenant's Expense Share....................................             7(d)(vi)
Tenant's Tax Share........................................             7(d)(vii)
Usable Area...............................................             2



                                       B-2






                            90 NEW MONTGOMERY STREET
                                  OFFICE LEASE
                                   EXHIBIT C
                              EXPENSE EXCLUSIONS

         Notwithstanding the provisions of Section 7(d)(i), no costs or expenses
incurred for the following shall be included in Expenses:

         (a) Leasing  commissions,  attorneys' fees, and other expenses incurred
in connection with negotiations with prospective tenants.

         (b) Costs (including  permit,  license and inspection fees) incurred in
improving,  renovating,  or decorating space for new tenants or existing tenants
who are extending the terms of their respective tenancies.

         (c) Costs of any services or  utilities  sold or provided to tenants to
the extent  Landlord is separately  reimbursed for such costs by such tenants as
an Additional Charge over and above the base rent, as the same may be escalated,
payable under the lease with such tenant.

         (d) Costs of the Building to the extent Landlord is reimbursed for such
costs by the retail tenants of the Building.

         (e) Depreciation and amortization on the Building,  except as otherwise
provided in clause (B) of Section 7(d)(i) of the Lease.
                             
         (f) Interest on debt or amortization payments on any mortgages or deeds
of trust.





                            90 NEW MONTGONIERY STREET
                                  OFFICE LEASE
                                    EXHIBIT D
                              RULES AND REGULATIONS

         1. No sign, placard.  picture,  advertisement,  name or notice shall be
inscribed,  displayed  or printed or affixed on or to any part of the outside or
inside of the  Building  without the written  consent of Landlord  first had and
obtained,  and Landlord  shall have the right to remove any such sign,  placard,
picture,  advertisement,  name or notice without notice to and at the expense of
Tenant.

         All approved  signs or  lettering  on doors shall be printed,  painted,
affixed  or  inscribed  at the  expense  of  Tenant by a person  approved  of by
Landlord.
  
         Tenant shall not place anything or allow anything to be placed near the
glass of any window,  door,  partition or wall which may appear  unsightly  from
outside the Premises; provided, however, that Landlord may furnish and install a
Building  standard  window covering for all exterior  windows.  Tenant shall not
without  prior  written  consent of Landlord  cover or otherwise  sunscreen  any
window.

         2. The sidewalks,  halls,  passages,  exits,  entrances,  elevators and
stairways  shall not be obstructed by any of the tenants or used by them for any
purpose other than for ingress to and egress from their respective Premises.

         3.  Tenant  shall not alter any lock or install  any new or  additional
locks to any bolts on any doors or windows of the Premises.

         4. The toilet rooms,  urinals, wash bowls and other apparatus shall not
be used for any purpose other than that for which they were constructed,  and no
foreign  substance  of any kind  whatsoever  shall be  thrown  therein,  and the
expense of any breakage, stoppage or damage resulting from the violation of this
rule shall be borne by the Tenant who, or whose  employees  or  invitees,  shall
have caused it.

         5. Tenant  shall not  overload  the floor of the Premises or in any way
deface the Premises.

         6. No furniture, freight or equipment of any kind shall be brought into
the Building  without prior notice to Landlord,  and all moving of the same into
or out of the Building shall be done at such time and in such manner as Landlord
shall designate. Landlord shall have the right to prescribe the weight, size and
position of all safes and other heavy  equipment  brought  into the Building and
also the times and manner of moving the same in and out of the  Building.  Safes
or other heavy  objects  shall,  if considered  necessary by Landlord,  stand on
supports of such  thickness as is necessary to properly  distribute  the weight.
Landlord will not be responsible for

                                       D-1







loss of or damage to any such safe or  property  from any cause,  and all damage
done to the Building by moving or  maintaining  any such safe or other  property
shall be repaired at the expense of Tenant.

         7. Tenant shall not use, keep, or permit to be used or kept any foul or
noxious gas or substance in the Premises, or permit or suffer the Premises to 
be occupied or used in a manner offensive or objectionable to the Landlord or 
ther occupants  of the Building by reason of noise, odors, and/or vibrations, 
or interfere in any way with other tenants or those having  business therein,
nor shall any  animals  or other  tenants or birds be brought in or kept in 
or about the Premises or the Building.

         8. No cooking shall be done or permitted by any Tenant on the Premises,
except  for  microwave  cooking  and hot  water  beverage  service  of the  kind
typically  permitted in the general  office space of buildings in San  Francisco
comparable  to the  Building,  nor shall the Premises be used for the storage of
merchandise,   for  washing   clothes,   for  lodging,   or  for  any  improper,
objectionable or immoral purposes.

         9. Tenant  shall not use or keep in the  Premises or the  Building  any
kerosene,  gasoline or inflammable or combustible fluid or material,  or use any
method of heating or air conditioning  other than that supplied by Landlord,  if
any.

         10. Landlord will direct electricians as to where and how telephone and
telegraph  wires are to be  introduced.  No boring or cutting  for wires will be
allowed  without the consent of the Landlord.  The location of telephones,  call
boxes,  and other office  equipment  affixed to the Premises shall be subject to
the approval of Landlord.

         11. On  Saturdays,  Sundays,  and  legal  holidays,  and on other  days
between the hours of 6:00 P.M. and 8:00 A.M. the  following  day,  access to the
Building, or to the halls, corridors, elevators or stairways in the Building, or
to the Premises may be refused  unless the person seeking access is known to the
person or  employee  of the  Building  in charge  and has a pass or is  properly
identified.  The  Landlord  shall in no case be liable for damages for any error
with regard to the admission to or exclusion from the Building of any person. In
case of invasion, mob, riot, public excitement, or other commotion, the Landlord
reserves the right to prevent access to the Building  during the  continuance of
the same by closing of the doors or otherwise, for the safety of the tenants and
protection both of property in the Building and of the Building.

         12.  Landlord  reserves the right to exclude or expel from the Building
any person  who,  in the  judgment  of  Landlord,  is  intoxicated  or under the
influence of liquor or drugs, or who shall in any manner do any act in violation
of any of the rules and regulations of the Building.

         13.  No  vending  machines  or  machines  of any  description  shall be
installed,  maintained or operated upon the Premises without the written consent
of the Landlord, which shall not be unreasonably withheld.

         14.  Tenant shall not disturb,  solicit,  or canvas any occupant of the
Building and shall cooperate to prevent same.

                                       D-2






         15. Without the written  consent of Landlord,  Tenant shall not use the
name of the  Building in  connection  with or in promoting  or  advertising  the
business of Tenant except as Tenant's address.

         16.  Landlord  shall have the right to control  and  operate the public
portions of the  Building,  and the public  facilities  and heating,  as well as
facilities  furnished for the  common  use of the  tenants,  in such  manner  as
Landlord deems best for the benefit of the tenants generally.
                     
         17. All entrance  doors in the  Premises  shall be left locked when the
Premises are not in use, and all doors opening to public corridors shall be kept
closed except for normal ingress to and egress from the Premises.







                                       D-3