EXHIBIT 4.3

                              JATO TECHNOLOGIES, INC.
                                  1997 STOCK PLAN


1.   PURPOSES OF THE PLAN.  The purposes of this Stock Plan are to attract 
and retain the best available personnel for positions of substantial 
responsibility, to provide additional incentive to Employees, Directors and 
Consultants and to promote the success of the Company's business.  Options 
granted under the Plan may be Incentive Stock Options or Nonstatutory Stock 
Options, as determined by the Administrator at the time of grant.  Stock 
Purchase Rights may also be granted under the Plan.

2.   DEFINITIONS.  As used herein, the following definitions shall apply:

               (a)   "ADMINISTRATOR" means the Board or any of its Committees 
as shall be administering the Plan in accordance with Section 4 hereof.

               (b)  "APPLICABLE LAWS" means the requirements relating to the 
administration of stock option plans under U.S. state corporate laws, U.S. 
federal and state securities laws, the Code, any stock exchange or quotation 
system on which the Common Stock is listed or quoted and the applicable laws 
of any foreign country or jurisdiction where Options or Stock Purchase Rights 
are granted under the Plan.

               (c)  "BOARD" means the Board of Directors of the Company.

               (d)  "CODE" means the Internal Revenue Code of 1986, as 
amended.

               (e)  "COMMITTEE"  means a committee of Directors appointed by 
the Board in accordance with Section 4 hereof.

               (f)  "COMMON STOCK" means the Common Stock of the Company.

               (g)  "COMPANY" means Jato Technologies, Inc., a Delaware 
corporation.

               (h)  "CONSULTANT" means any person who is engaged by the 
Company or any Parent or Subsidiary to render consulting or advisory services 
to such entity.

               (i)  "DIRECTOR" means a member of the Board of Directors of 
the Company.

               (j)  "EMPLOYEE" means any person, including officers and 
Directors, employed by the Company or any Parent or Subsidiary of the 
Company.  A Service Provider shall not cease to be an Employee in the case of 
(i) any leave of absence approved by the Company or (ii) transfers between 
locations of the Company or between the Company, its Parent, any Subsidiary, 
or any successor. For purposes of Incentive Stock Options, no such leave may 
exceed ninety days, unless reemployment upon expiration of such leave is 
guaranteed by statute or contract.  If reemployment upon expiration of a 
leave of absence approved by the Company is not so guaranteed, on the 181st 
day of such leave any Incentive Stock Option held by the Optionee shall cease 
to be treated as an Incentive Stock Option and shall be treated for tax 
purposes as a Nonstatutory Stock Option. Neither service as a Director nor 



payment of a director's fee by the Company shall be sufficient to constitute 
"employment" by the Company.

               (k)  "EXCHANGE ACT" means the Securities Exchange Act of 1934, 
as amended.

               (l)  "FAIR MARKET VALUE" means, as of any date, the value of 
Common Stock determined as follows:

                    (i)    If the Common Stock is listed on any established 
stock exchange or a national market system, including without limitation the 
Nasdaq National Market or The Nasdaq SmallCap Market of The Nasdaq Stock 
Market, its Fair Market Value shall be the closing sales price for such stock 
(or the closing bid, if no sales were reported) as quoted on such exchange or 
system for the last market trading day prior to the time of determination, as 
reported in THE WALL STREET JOURNAL or such other source as the Administrator 
deems reliable;

                    (ii)   If the Common Stock is regularly quoted by a 
recognized securities dealer but selling prices are not reported, its Fair 
Market Value shall be the mean between the high bid and low asked prices for 
the Common Stock on the last market trading day prior to the day of 
determination; or

                    (iii)  In the absence of an established market for the 
Common Stock, the Fair Market Value thereof shall be determined in good faith 
by the Administrator.

               (m)   "INCENTIVE STOCK OPTION" means an Option intended to 
qualify as an incentive stock option within the meaning of Section 422 of the 
Code

               (n)   "NONSTATUTORY STOCK OPTION" means an Option not intended 
to qualify as an Incentive Stock Option.

               (o)  "OPTION" means a stock option granted pursuant to the 
Plan.

               (p)  "OPTION AGREEMENT" means a written or electronic 
agreement between the Company and an Optionee evidencing the terms and 
conditions of an individual Option grant.  The Option Agreement is subject to 
the terms and conditions of the Plan.

               (q)   "OPTION EXCHANGE PROGRAM" means a program whereby 
outstanding Options are exchanged for Options with a lower exercise price.

               (r)  "OPTIONED STOCK" means the Common Stock subject to an 
Option or a Stock Purchase Right.

               (s)  "OPTIONEE" means the holder of an outstanding Option or 
Stock Purchase Right granted under the Plan.

               (t)  "OUTSIDE DIRECTOR" means a Director who is not an 
Employee.

               (u)  "PARENT" means a "parent corporation," whether now or 
hereafter existing, as defined in Section 424(e) of the Code.




               (v)  "PLAN" means this 1997 Stock Plan.

               (w)  "RESTRICTED STOCK" means shares of Common Stock 
acquired pursuant to a grant of a Stock Purchase Right under Section 10 below.

               (x)  "SERVICE PROVIDER" means an Employee, Director or 
Consultant.

               (y)  "SHARE" means a share of the Common Stock, as adjusted in 
accordance with Section 12 below.

               (z)  "STOCK PURCHASE RIGHT" means a right to purchase Common 
Stock pursuant to Section 10 below.

               (aa) "SUBSIDIARY" means a "subsidiary corporation," whether 
now or hereafter existing, as defined in Section 424(f) of the Code.

     3.   STOCK SUBJECT TO THE PLAN.  Subject to the provisions of Section 
12 of the Plan, the maximum aggregate number of Shares which may be subject 
to option and sold under the Plan is 1,200,000 Shares.  The Shares may be 
authorized but unissued, or reacquired Common Stock.  

          If an Option or Stock Purchase Right expires or becomes 
unexercisable without having been exercised in full, or is surrendered 
pursuant to an Option Exchange Program, the unpurchased Shares which were 
subject thereto shall become available for future grant or sale under the 
Plan (unless the Plan has terminated).  However, Shares that have actually 
been issued under the Plan, upon exercise of either an Option or Stock 
Purchase Right, shall not be returned to the Plan and shall not become 
available for future distribution under the Plan, except that if Shares of 
Restricted Stock are repurchased by the Company at their original purchase 
price, such Shares shall become available for future grant under the Plan. 

     4.   ADMINISTRATION OF THE PLAN

               (a)  The Plan shall be administered by the Board or a 
Committee appointed by the Board, which Committee shall be constituted to 
comply with Applicable Laws.

               (b)  POWERS OF THE ADMINISTRATOR.  Subject to the provisions 
of the Plan and, in the case of a Committee, the specific duties delegated by 
the Board to such Committee, and subject to the approval of any relevant 
authorities, the Administrator shall have the authority in its discretion:

                    (i)    to determine the Fair Market Value;

                    (ii)   to select the Service Providers to whom Options 
and Stock Purchase Rights may from time to time be granted hereunder;

                    (iii)  to determine the number of Shares to be covered by 
each such award granted hereunder;



                    (iv)   to approve forms of agreement for use under the 
Plan;

                    (v)    to determine the terms and conditions, of any 
Option or Stock Purchase Right granted hereunder.  Such terms and conditions 
include, but are not limited to, the exercise price, the time or times when 
Options or Stock Purchase Rights may be exercised (which may be based on 
performance criteria), any vesting acceleration or waiver of forfeiture 
restrictions, and any restriction or limitation regarding any Option or Stock 
Purchase Right or the Common Stock relating thereto, based in each case on 
such factors as the Administrator, in its sole discretion, shall determine;

                    (vi)   to determine whether and under what circumstances 
an Option may be settled in cash under subsection 9(e) instead of Common 
Stock;

                    (vii)  to reduce the exercise price of any Option to the 
then current Fair Market Value if the Fair Market Value of the Common Stock 
covered by such Option has declined since the date the Option was granted; 

                    (viii) to initiate an Option Exchange Program;

                    (ix)   to prescribe, amend and rescind rules and 
regulations relating to the Plan, including rules and regulations relating to 
sub-plans established for the purpose of qualifying for preferred tax 
treatment under foreign tax laws;

                    (x)    to allow Optionees to satisfy withholding tax 
obligations by electing to have the Company withhold from the Shares to be 
issued upon exercise of an Option or Stock Purchase Right that number of 
Shares having a Fair Market Value equal to the amount required to be 
withheld.  The Fair Market Value of the Shares to be withheld shall be 
determined on the date that the amount of tax to be withheld is to be 
determined.  All elections by Optionees to have Shares withheld for this 
purpose shall be made in such form and under such conditions as the 
Administrator may deem necessary or advisable; and

                    (xi)   to construe and interpret the terms of the Plan 
and awards granted pursuant to the Plan.

          (c)    EFFECT OF ADMINISTRATOR'S DECISION.  All decisions, 
determinations and interpretations of the Administrator shall be final and 
binding on all Optionees.

     5.   ELIGIBILITY.

          (a)  Nonstatutory Stock Options and Stock Purchase Rights may be 
granted to Service Providers.  Incentive Stock Options may be granted only to 
Employees.

          (b)  Each Option shall be designated in the Option Agreement as 
either an Incentive Stock Option or a Nonstatutory Stock Option.  However, 
notwithstanding such designation, to the extent that the aggregate Fair 
Market Value of the Shares with respect to which Incentive Stock Options are 
exercisable for the first time by the Optionee during any calendar year 
(under all plans of the Company and any Parent or Subsidiary) exceeds 



$100,000, such Options shall be treated as Nonstatutory Stock Options.  For 
purposes of this Section 5(b), Incentive Stock Options shall be taken into 
account in the order in which they were granted.  The Fair Market Value of 
the Shares shall be determined as of the time the Option with respect to such 
Shares is granted.

          (c)  Neither the Plan nor any Option or Stock Purchase Right shall 
confer upon any Optionee any right with respect to continuing the Optionee's 
relationship as a Service Provider with the Company, nor shall it interfere 
in any way with his or her right or the Company's right to terminate such 
relationship at any time, with or without cause.

     6.   TERM OF PLAN.  The Plan shall become effective upon its adoption 
by the Board.  It shall continue in effect for a term of ten (10) years 
unless sooner terminated under Section 14 of the Plan.

     7.   TERM OF OPTION.  The term of each Option shall be stated in the 
Option Agreement; provided, however, that the term shall be no more than ten 
(10) years from the date of grant thereof.  In the case of an Incentive Stock 
Option granted to an Optionee who, at the time the Option is granted, owns 
stock representing more than ten percent (10%) of the voting power of all 
classes of stock of the Company or any Parent or Subsidiary, the term of the 
Option shall be five (5) years from the date of grant or such shorter term as 
may be provided in the Option Agreement.

     8.   OPTION EXERCISE PRICE AND CONSIDERATION.

          (a)  The per share exercise price for the Shares to be issued upon 
exercise of an Option shall be such price as is determined by the 
Administrator, but shall be subject to the following:

               (i)  In the case of an Incentive Stock Option

                    (A)    granted to an Employee who, at the time of grant 
of such Option, owns stock representing more than ten percent (10%) of the 
voting power of all classes of stock of the Company or any Parent or 
Subsidiary, the exercise price shall be no less than 110% of the Fair Market 
Value per Share on the date of grant.

                    (B)    granted to any other Employee, the per Share 
exercise price shall be no less than 100% of the Fair Market Value per Share 
on the date of grant.

               (ii)     In the case of a Nonstatutory Stock Option, the per 
Share exercise price shall be determined by the Administrator.

               (iii)      Notwithstanding the foregoing, Options may be 
granted with a per Share exercise price other than as required above pursuant 
to a merger or other corporate transaction.

          (b)  The consideration to be paid for the Shares to be issued upon 
exercise of an Option, including the method of payment, shall be determined 
by the Administrator (and, in 




the case of an Incentive Stock Option, shall be determined at the time of 
grant).  Such consideration  may consist of (1) cash, (2) check, (3) 
promissory note, (4) other Shares which (x) in the case of Shares acquired 
upon exercise of an Option, have been owned by the Optionee for more than six 
months on the date of surrender, and (y) have a Fair Market Value on the date 
of surrender equal to the aggregate exercise price of the Shares as to which 
such Option shall be exercised, (5) consideration received by the Company 
under a cashless exercise program implemented by the Company in connection 
with the Plan, or (6) any combination of the foregoing methods of payment.  
In making its determination as to the type of consideration to accept, the 
Administrator shall consider if acceptance of such consideration may be 
reasonably expected to benefit the Company.

     9.   EXERCISE OF OPTION.

          (a)  PROCEDURE FOR EXERCISE; RIGHTS AS A STOCKHOLDER. Any Option 
granted hereunder shall be exercisable according to the terms hereof at such 
times and under such conditions as determined by the Administrator and set 
forth in the Option Agreement.  Unless the Administrator provides otherwise, 
vesting of Options granted hereunder shall be tolled during any unpaid leave 
of absence. An Option may not be exercised for a fraction of a Share.

               (i)      An Option shall be deemed exercised when the Company 
receives: (i) written or electronic notice of exercise (in accordance with 
the Option Agreement) from the person entitled to exercise the Option, and 
(ii) full payment for the Shares with respect to which the Option is 
exercised.  Full payment may consist of any consideration and method of 
payment authorized by the Administrator and permitted by the Option Agreement 
and the Plan.  Shares issued upon exercise of an Option shall be issued in 
the name of the Optionee or, if requested by the Optionee, in the name of the 
Optionee and his or her spouse. Until the Shares are issued (as evidenced by 
the appropriate entry on the books of the Company or of a duly authorized 
transfer agent of the Company), no right to vote or receive dividends or any 
other rights as a stockholder shall exist with respect to the Shares, 
notwithstanding the exercise of the Option.  The Company shall issue (or 
cause to be issued) such Shares promptly after the Option is exercised.  No 
adjustment will be made for a dividend or other right for which the record 
date is prior to the date the Shares are issued, except as provided in 
Section 12 of the Plan.

               (ii)     Exercise of an Option in any manner shall result in a 
decrease in the number of Shares thereafter available, both for purposes of 
the Plan and for sale under the Option, by the number of Shares as to which 
the Option is exercised.

          (b)  TERMINATION OF RELATIONSHIP AS A SERVICE PROVIDER.  If an 
Optionee ceases to be a Service Provider, such Optionee may exercise his or 
her Option within such period of time as is specified in the Option Agreement 
(of at least thirty (30) days) to the extent that the Option is vested on the 
date of termination (but in no event later than the expiration of the term of 
the Option as set forth in the Option Agreement).  In the absence of a 
specified time in the Option Agreement, the Option shall remain exercisable 
for three (3) months following the Optionee's termination.  If, on the date 
of termination, the Optionee is not vested as to his or her entire Option, 
the Shares covered by the unvested portion of the Option shall revert to 



the Plan.  If, after termination, the Optionee does not exercise his or her 
Option within the time specified by the Administrator, the Option shall 
terminate, and the Shares covered by such Option shall revert to the Plan.

          (c)  DISABILITY OF OPTIONEE.  If an Optionee ceases to be a Service 
Provider as a result of the Optionee's total and permanent disability, as 
defined in Section 22(e)(3) of the Code, the Optionee may exercise his or her 
Option within such period of time as is specified in the Option Agreement to 
the extent the Option is vested on the date of termination (but in no event 
later than the expiration of the term of such Option as set forth in the 
Option Agreement).  In the absence of a specified time in the Option 
Agreement, the Option shall remain exercisable for twelve (12) months 
following the Optionee's termination.  If, on the date of termination, the 
Optionee is not vested as to his or her entire Option, the Shares covered by 
the unvested portion of the Option shall revert to the Plan.  If, after 
termination, the Optionee does not exercise his or her Option within the time 
specified herein, the Option shall terminate, and the Shares covered by such 
Option shall revert to the Plan.

          (d)  DEATH OF OPTIONEE.  If an Optionee dies while a Service 
Provider, the Option may be exercised within such period of time as is 
specified in the Option Agreement (but in no event later than the expiration 
of the term of such Option as set forth in the Notice of Grant), by the 
Optionee's estate or by a person who acquires the right to exercise the 
Option by bequest or inheritance, but only to the extent that the Option is 
vested on the date of death.  In the absence of a specified time in the 
Option Agreement, the Option shall remain exercisable for twelve (12) months 
following the Optionee's termination.  If, at the time of death, the Optionee 
is not vested as to his or her entire Option, the Shares covered by the 
unvested portion of the Option shall immediately revert to the Plan.  The 
Option may be exercised by the executor or administrator of the Optionee's 
estate or, if none, by the person(s) entitled to exercise the Option under 
the Optionee's will or the laws of descent or distribution.  If the Option is 
not so exercised within the time specified herein, the Option shall 
terminate, and the Shares covered by such Option shall revert to the Plan

          (e)  BUYOUT PROVISIONS.  The Administrator may at any time offer to 
buy out for a payment in cash or Shares, an Option previously granted, based 
on such terms and conditions as the Administrator shall establish and 
communicate to the Optionee at the time that such offer is made.

     10.  STOCK PURCHASE RIGHTS.

          (a)  RIGHTS TO PURCHASE.  Stock Purchase Rights may be issued 
either alone, in addition to, or in tandem with other awards granted under 
the Plan and/or cash awards made outside of the Plan.  After the 
Administrator determines that it will offer Stock Purchase Rights under the 
Plan, it shall advise the offeree in writing or electronically of the terms, 
conditions and restrictions related to the offer, including the number of 
Shares that such person shall be entitled to purchase, the price to be paid, 
and the time within which such person must accept such offer.  The offer 
shall be accepted by execution of a Restricted Stock purchase agreement in 
the form determined by the Administrator. 

          (b)  REPURCHASE OPTION.  Unless the Administrator determines 
otherwise, the 



Restricted Stock purchase agreement shall grant the Company a repurchase 
option exercisable upon the voluntary or involuntary termination of the 
purchaser's service with the Company for any reason (including death or 
disability).  The purchase price for Shares repurchased pursuant to the 
Restricted Stock purchase agreement shall be the original price paid by the 
purchaser and may be paid by cancellation of any indebtedness of the 
purchaser to the Company.  The repurchase option shall lapse at such rate as 
the Administrator may determine.

          (c)  OTHER PROVISIONS.  The Restricted Stock purchase agreement 
shall contain such other terms, provisions and conditions not inconsistent 
with the Plan as may be determined by the Administrator in its sole 
discretion. 

          (d)  RIGHTS AS A STOCKHOLDER.  Once the Stock Purchase Right is 
exercised, the purchaser shall have rights equivalent to those of a 
stockholder and shall be a stockholder when his or her purchase is entered 
upon the records of the duly authorized transfer agent of the Company.  No 
adjustment shall be made for a dividend or other right for which the record 
date is prior to the date the Stock Purchase Right is exercised, except as 
provided in Section 12 of the Plan.

     11.   NONTRANSFERABILITY OF OPTIONS AND STOCK PURCHASE RIGHTS.  Unless 
determined otherwise by the Administrator, Options and Stock Purchase Rights 
may not be sold, pledged, assigned, hypothecated, transferred, or disposed of 
in any manner other than by will or by the laws of descent or distribution 
and may be exercised, during the lifetime of the Optionee, only by the 
Optionee.  If the Administrator makes an Option or Stock Purchase Right 
transferable, such Option or Stock Purchase Right shall contain such 
additional terms and conditions as the Administrator deems appropriate.

     12.  ADJUSTMENTS UPON CHANGES IN CAPITALIZATION, MERGER OR ASSET SALE.

          (a)  CHANGES IN CAPITALIZATION.  Subject to any required action by 
the stockholders of the Company, the number of shares of Common Stock covered 
by each outstanding Option or Stock Purchase Right, and the number of shares 
of Common Stock which have been authorized for issuance under the Plan but as 
to which no Options or Stock Purchase Rights have yet been granted or which 
have been returned to the Plan upon cancellation or expiration of an Option 
or Stock Purchase Right, as well as the price per share of Common Stock 
covered by each such outstanding Option or Stock Purchase Right, shall be 
proportionately adjusted for any increase or decrease in the number of issued 
shares of Common Stock resulting from a stock split, reverse stock split, 
stock dividend, combination or reclassification of the Common Stock, or any 
other increase or decrease in the number of issued shares of Common Stock 
effected without receipt of consideration by the Company.  The conversion of 
any convertible securities of the Company shall not be deemed to have been 
"effected without receipt of consideration."  Such adjustment shall be made 
by the Board, whose determination in that respect shall be final, binding and 
conclusive.  Except as expressly provided herein, no issuance by the Company 
of shares of stock of any class, or securities convertible into shares of 
stock of any class, shall affect, and no adjustment by reason thereof shall 
be made with respect to, the number or price of shares of Common Stock 
subject to an Option or Stock Purchase Right.




          (b)  DISSOLUTION OR LIQUIDATION.  In the event of the proposed 
dissolution or liquidation of the Company, the Administrator shall notify 
each Optionee as soon as practicable prior to the effective date of such 
proposed transaction. The Administrator in its discretion may provide for an 
Optionee to have the right to exercise his or her Option until fifteen (15) 
days prior to such transaction as to all of the Optioned Stock covered 
thereby, including Shares as to which the Option would not otherwise be 
exercisable.  In addition, the Administrator may provide that any Company 
repurchase option applicable to any Shares purchased upon exercise of an 
Option or Stock Purchase Right shall lapse as to all such Shares, provided 
the proposed dissolution or liquidation takes place at the time and in the 
manner contemplated.  To the extent it has not been previously exercised, an 
Option or Stock Purchase Right will terminate immediately prior to the 
consummation of such proposed action.

          (c)  MERGER OR ASSET SALE. 

               (i)  EMPLOYEE AND CONSULTANT OPTIONS.

                    (A)    GENERAL.  In the event of a merger of the Company 
with or into another corporation, or the sale of substantially all of the 
assets of the Company (a "Merger"), each outstanding Option and Stock 
Purchase Right held by an Employee or Consultant (and granted to such person 
in such capacity) shall be assumed or an equivalent option or right 
substituted by the successor corporation, or a Parent or Subsidiary of the 
successor corporation  (the "Successor Corporation").  In the event that the 
Successor Corporation refuses to assume or substitute for the Option or Stock 
Purchase Right, the Employee or Consultant shall fully vest in and have the 
right to exercise such Option or Stock Purchase Right as to all of the 
Optioned Stock, including Shares as to which the Employee or Consultant would 
not otherwise be vested or exercisable. If an Option or Stock Purchase Right 
becomes fully vested and exercisable in lieu of assumption or substitution as 
provided in this paragraph, the Administrator shall notify the Optionee in 
writing or electronically that the Option or Stock Purchase Right shall be 
fully vested and exercisable for a period of fifteen (15) days from the date 
of such notice, and the Option or Stock Purchase Right shall terminate upon 
the expiration of such period.  For the purposes of this paragraph, the 
Option or Stock Purchase Right shall be considered assumed if, following the 
merger or sale of assets, the option or right confers the right to purchase 
or receive, for each Share of Optioned Stock subject to the Option or Stock 
Purchase Right immediately prior to the merger or sale of assets, the 
consideration (whether stock, cash, or other securities or property) received 
in the merger or sale of assets by holders of Common Stock for each Share 
held on the effective date of the transaction (and if holders were offered a 
choice of consideration, the type of consideration chosen by the holders of a 
majority of the outstanding Shares); provided, however, that if such 
consideration received in the merger or sale of assets s not solely common 
stock of the Successor Corporation or its Parent, the Administrator may, with 
the consent of the Successor Corporation, provide for the consideration to be 
received upon the exercise of the Option or Stock Purchase Right, for each 
Share of Optioned Stock subject to the Option or Stock Purchase Right, to be 
solely common stock of the Successor Corporation or its Parent equal in fair 
market value to the per share consideration received by holders of Common 
Stock in the merger or sale of assets.



                    (B)    EMPLOYEE AND CONSULTANT OPTIONS FOLLOWING 
ASSUMPTION OR SUBSTITUTION.  Following an assumption or substitution in 
connection with a Merger, if an Employee or Consultant's status as an 
Employee (or employee) or Consultant (or consultant) of the Successor 
Corporation, as applicable, is terminated by the Successor Corporation as a 
result of an Involuntary Termination (as defined below) within twelve months 
following a Merger, the Optionee shall fully vest in and have the right to 
exercise Optionee's Option or Stock Purchase Right as to all of the Optioned 
Stock, including Shares as to which Optionee would not otherwise be vested or 
exercisable. Thereafter, the Option or Stock Purchase Right shall remain 
exercisable in accordance with Section 9. 

                    (C)    For purposes of this section, any of the following 
events shall constitute an "Involuntary Termination":  (i) without the 
Optionee's express written consent, a significant reduction of the Optionee's 
duties, authority or responsibilities, relative to the Optionee's duties, 
authority or responsibilities as in effect immediately prior to the Merger; 
(ii) without the Optionee's express written consent, a substantial reduction, 
without good business reasons, of the facilities and perquisites (including 
office space and location) available to the Optionee immediately prior to the 
Merger; (iii) a reduction in the base salary of the Optionee as in effect 
immediately prior to the Merger; (iv) a material reduction in the kind or 
level of employee benefits, including bonuses, to which the Optionee was 
entitled immediately prior to the Merger with the result that the Optionee's 
overall benefits package is significantly reduced; (v) the relocation of the 
Optionee to a facility or a location more than thirty (30) miles from the 
Optionee's then present location, without the Optionee's express written 
consent; (vi) any purported termination of the Optionee which is not effected 
for Disability or for Cause (as defined below), or any purported termination 
for which the grounds relied upon are not valid; (vii) or any act or set of 
facts or circumstances which would, under California case law or statute, 
constitute a constructive termination of the Optionee.  

                    (D)    For purposes of this section, "Cause" shall mean 
(i) any act of personal dishonesty taken by the Optionee in connection with 
his responsibilities as an employee and intended to result in substantial 
personal enrichment of the Optionee, (ii) Optionee's conviction of a felony, 
(iii) a willful act by the Optionee which constitutes gross misconduct and 
which is injurious to the Successor Corporation, and (iv) following delivery 
to the Optionee of a written demand for performance from the Successor 
Corporation which describes the basis for the Successor Corporation's belief 
that the Optionee has not substantially performed his duties, continued 
violations by the Optionee of the Optionee's obligations to the Successor 
which are demonstrably willful and deliberate on the Optionee's part.

               (ii)     OUTSIDE DIRECTOR OPTIONS.  In the event of a Merger, 
each outstanding Option and Stock Purchase Right held by an Outside Director 
(and granted to such person in such capacity) shall fully vest as to all of 
the Optioned Stock, including Shares as to which the Outside Director would 
not otherwise be vested or exercisable.  If an Option or Stock Purchase Right 
becomes fully vested and exercisable as provided in this paragraph, the 



Administrator shall notify the Optionee in writing or electronically that the 
Option or Stock Purchase Right shall be fully vested and exercisable for a 
period of fifteen (15) days from the date of such notice, and the Option or 
Stock Purchase Right shall terminate upon the expiration of such period.  

     13.   TIME OF GRANTING OPTIONS AND STOCK PURCHASE RIGHTS.  The date of 
grant of an Option or Stock Purchase Right shall, for all purposes, be the 
date on which the Administrator makes the determination granting such Option 
or Stock Purchase Right, or such other date as is determined by the 
Administrator. Notice of the determination shall be given to each Employee or 
Consultant to whom an Option or Stock Purchase Right is so granted within a 
reasonable time after the date of such grant.

     14.   AMENDMENT AND TERMINATION OF THE PLAN.

          (a)  AMENDMENT AND TERMINATION.  The Board may at any time amend, 
alter, suspend or terminate the Plan.  

          (b)  STOCKHOLDER APPROVAL.  The Board shall obtain stockholder 
approval of any Plan amendment to the extent necessary and desirable to 
comply with Applicable Laws. 

          (c)  EFFECT OF AMENDMENT OR TERMINATION.  No amendment, alteration, 
suspension or termination of the Plan shall impair the rights of any 
Optionee, unless mutually agreed otherwise between the Optionee and the 
Administrator, which agreement must be in writing and signed by the Optionee 
and the Company. Termination of the Plan shall not affect the Administrator's 
ability to exercise the powers granted to it hereunder with respect to 
Options granted under the Plan prior to the date of such termination.

     15.  CONDITIONS UPON ISSUANCE OF SHARES.  

          (a)  LEGAL COMPLIANCE.  Shares shall not be issued pursuant to the 
exercise of an Option  unless the exercise of such Option and the issuance 
and delivery of such Shares shall comply with Applicable Laws and shall be 
further subject to the approval of counsel for the Company with respect to 
such compliance.

          (b)  INVESTMENT REPRESENTATIONS.  As a condition to the exercise of 
an Option, the Administrator may require the person exercising such Option to 
represent and warrant at the time of any such exercise that the Shares are 
being purchased only for investment and without any present intention to sell 
or distribute such Shares if, in the opinion of counsel for the Company, such 
a representation is required.

     16.  INABILITY TO OBTAIN AUTHORITY.  The inability of the Company to 
obtain authority from any regulatory body having jurisdiction, which 
authority is deemed by the Company's counsel to be necessary to the lawful 
issuance and sale of any Shares hereunder, shall relieve the Company of any 
liability in respect of the failure to issue or sell such Shares as to which 
such requisite authority shall not have been obtained.

     17.  RESERVATION OF SHARES.  The Company, during the term of this Plan, 
shall at all 




times reserve and keep available such number of Shares as shall be sufficient 
to satisfy the requirements of the Plan.

     18.  STOCKHOLDER APPROVAL.  The Plan shall be subject to approval by the 
stockholders of the Company within twelve (12) months after the date the Plan 
is adopted.  Such stockholder approval shall be obtained in the degree and 
manner required under Applicable Laws.