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 commencement 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 any  cancellation 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  thirty  (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 their
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