Exhibit 99.1

                      1992 Stock Option/Stock Issuance Plan
                            (as amended May 25, 2001)






                                                                    EXHIBIT 99.1


                       LIGAND PHARMACEUTICALS INCORPORATED

                      1992 STOCK OPTION/STOCK ISSUANCE PLAN
                         AS AMENDED THROUGH MAY 25, 2001

                                   ARTICLE ONE

                                     GENERAL


     I. PURPOSE OF THE PLAN

          A. This 1992 Stock Option/Stock Issuance Plan ("Plan") is intended to
promote the interests of Ligand Pharmaceuticals Incorporated, a Delaware
corporation (the "Corporation"), by providing (i) key employees (including
officers) of the Corporation (or its parent or subsidiary corporations) who are
responsible for the management, growth and financial success of the Corporation
(or its parent or subsidiary corporations), (ii) non-employee members of the
Board of Directors and (iii) consultants and other independent contractors who
provide valuable services to the Corporation (or its parent or subsidiary
corporations) with the opportunity to acquire a proprietary interest, or
otherwise increase their proprietary interest in the Corporation as an incentive
for them to remain in the service of the Corporation (or its parent or
subsidiary corporations).

          B. The Plan became effective on November 17, 1992, the date on which
the shares of the Corporation's common stock were first registered under Section
12(g) of the Securities Exchange Act of 1934, as amended (the "1934 Act"). Such
date is hereby designated as the "Effective Date" of this Plan.

          C. This Plan shall serve as the successor to the Corporation's
Restricted Stock Purchase Plan (the "Stock Plan") and 1988 Stock Option Plan
(the "Option Plan") (such Plans are hereinafter referred to as the "Predecessor
Plans"), and no further option grants or share issuances shall be made under the
Predecessor Plans from and after the Effective Date. Each outstanding option or
share issuance under the Predecessor Plans immediately prior to the Effective
Date were incorporated into this Plan and are to be treated as outstanding
options or stock issuances under this Plan. However, each such option or share
issuance shall continue to be governed solely by the terms and conditions of the
instrument evidencing such grant or issuance, and, except as otherwise expressly
provided herein, no provision of this Plan shall affect or otherwise modify the
rights or obligations of the holders of such incorporated options or shares with
respect to their acquisition of shares of the Corporation's common stock or
otherwise modify the rights or obligations of the holders of such options or
shares.

          D. For purposes of this Plan, the following provisions shall be
applicable in determining the parent and subsidiary corporations of the
Corporation:

               Any corporation (other than the Corporation) in an unbroken chain
          of corporations ending with the Corporation shall be considered to be
          a PARENT of the Corporation, provided each such corporation in the
          unbroken chain (other than the Corporation) owns, at the time of the
          determination, stock possessing fifty percent (50%) or more of the
          total combined voting power of all classes of stock in one of the
          other corporations in such chain.

               Each corporation (other than the Corporation) in an unbroken
          chain of corporations beginning with the Corporation shall be
          considered to be a SUBSIDIARY of the Corporation, provided each such
          corporation (other than the last corporation) in the unbroken chain
          owns, at the time of the determination, stock possessing fifty percent
          (50%) or more of the total combined voting power of all classes of
          stock in one of the other corporations in such chain.



     II. STRUCTURE OF THE PLAN

          A. The Plan shall be divided into four separate components: the
Discretionary Option Grant Program specified in Article Two, the Automatic
Option Grant Program specified in Article Three, the Stock Issuance Program
specified in Article Four, and the Director Fee Option Grant Program specified
in Article Five. Under the Discretionary Option Grant Program, eligible
individuals may be granted options to purchase shares of the Corporation's
common stock at not less than 85% of the Fair Market Value (as defined below) of
such shares on the grant date. Under the Automatic Option Grant Program,
eligible non-employee members of the Board of Directors will be granted options
to purchase shares of the Corporation's common stock at 100% of the Fair Market
Value of such shares on the grant date. Subject to the limitations contained in
this Plan, the Stock Issuance Program shall allow eligible individuals to
purchase shares of the Corporation's common stock at discounts from the Fair
Market Value of such shares of up to 15%. Such shares may be issued as
fully-vested shares or as shares to vest over time. Under the Director Fee
Option Grant Program, non-employee Board members may elect to apply all or a
portion of the fee otherwise payable in cash to him or her each year to the
acquisition of a special option grant.

          B. The provisions of Articles One and Six of the Plan shall apply to
both the Discretionary Option Grant Program and the Stock Issuance Program and
shall accordingly govern the interests of all individuals in the Plan.

          C. With respect to persons subject to Section 16 of the Securities
Exchange Act of 1934 ("1934 Act"), transactions under the Plan are intended to
comply with all applicable conditions of Rule 16b-3 or its successors under the
1934 Act. To the extent any provision of the Plan or action by the Committee (as
defined below) fails to so comply, it shall be deemed null and void, to the
extent permitted by law and deemed advisable by the Committee.

     III. ADMINISTRATION OF THE PLAN

          A. PLAN ADMINISTRATOR. The Board shall appoint a committee of two (2)
or more non-employee Board members (the "Primary Committee") to have sole and
exclusive authority to administer the Discretionary Option Grant and Stock
Issuance Programs to administer the Plan with respect to officers and directors
subject to Section 16 of the 1934 Act ("Section 16 Insiders").

          B. COMMITTEES. Administration of the Discretionary Option Grant and
Stock Issuance Programs with respect to all other persons eligible to
participate in those programs may, in the Board's discretion, be vested in the
Primary Committee or a committee of two (2) or more Board members appointed by
the Board (the "Secondary Committee"), or the Board may retain the power to
administer those programs with respect to all such persons.

          C. MEMBERS OF COMMITTEES. Members of the Primary Committee or any
Secondary Committee shall serve for such period of time as the Board may
determine and may be removed by the Board at any time. The Board may also at any
time terminate the functions of any Secondary Committee and assume all powers
and authority previously delegated to such committee.

          D. SERVICE AS COMMITTEE MEMBERS. Service on the Primary Committee or
the Secondary Committee shall constitute service as a Board member, and members
of each such committee shall accordingly be entitled to full indemnification and
reimbursement as Board members for their service on such committee. No member of
the Primary Committee or the Secondary Committee shall be liable for any act or
omission made in good faith with respect to the Plan or any option grants or
stock issuances under the Plan.

          E. AUTHORITY. Each Plan Administrator shall, within the scope of its
administrative functions under the Plan, have full power and authority (subject
to the express provisions of the Plan) to establish such rules and regulations
as it may deem appropriate for the proper administration of the Discretionary
Option Grant Program and Stock Issuance Programs and to make such determinations
under, and issue such interpretations of, such programs and any outstanding
option grants or stock issuances as it may deem necessary or advisable.
Decisions of

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each Plan Administrator shall be final and binding on all parties who have an
interest in the Discretionary Option Grant Program and Stock Issuance Program or
any outstanding option or stock issuance thereunder.

          F. RESTRICTION ON DISCRETION. The administration of the Automatic
Option Grant Program under Article Three and the Director Fee Option Grant
Program under Article Five shall be self executing in accordance with the terms
and provisions of those programs, and no Plan Administrator shall exercise any
discretionary functions with respect to such programs.

     IV. OPTION GRANTS AND STOCK ISSUANCES

          A. The persons eligible to receive stock issuances under the Stock
Issuance Program ("Participant") and/or option grants pursuant to the
Discretionary Option Grant Program ("Optionee") are as follows:

               (i) officers and other key employees of the Corporation (or its
          parent or subsidiary corporations) who render services which
          contribute to the management, growth and financial success of the
          Corporation (or its parent or subsidiary corporations);

               (ii) non-employee members of the Board of Directors; and

               (iii) those consultants or other independent contractors who
          provide valuable services to the Corporation (or its parent or
          subsidiary corporations).

          B. Only non-employee members of the Board shall be eligible to
participate in the Automatic Option Grant Program and the Director Fee Option
Grant Program.

          C. Each Plan Administrator shall have full authority to determine, (i)
with respect to the option grants made under the Discretionary Option Grant
Program, which eligible individuals are to receive option grants, the time or
times when such grants are to be made, the number of shares to be covered by
each such grant, whether the granted option is to be an incentive stock option
("Incentive Option") which satisfies the requirements of Section 422 of the
Internal Revenue Code or a non-statutory option not intended to meet such
requirements, the time or times at which each granted option is to become
exercisable and the maximum term for which the option may remain outstanding and
(ii) with respect to stock issuances under the Stock Issuance Program, the
number of shares to be issued to each Participant, the vesting schedule (if any)
to be applicable to the issued shares, and the consideration to be paid by the
individual for such shares.

          D. The Plan Administrator shall have the absolute discretion either to
grant options in accordance with Article Two of the Plan or to effect stock
issuances in accordance with Article Four of the Plan. The Plan Administrator
will have no discretion with respect to the grant of options under the Automatic
Option Grant Program and the Director Fee Option Grant Program.

     V. STOCK SUBJECT TO THE PLAN

          A. Shares of the Corporation's Common Stock (hereinafter referred to
as "Common Stock") shall be available for issuance under the Plan and shall be
drawn from either the Corporation's authorized but unissued shares of Common
Stock or from reacquired shares of Common Stock, including shares repurchased by
the Corporation on the open market. The maximum number of shares issuable under
the Plan is 10,323,457 shares of Common Stock. Such share reserve includes an
increase of 750,000 shares authorized by the Board in March, 2001, and
subsequently approved by the stockholders at the 2001 Annual Meeting.

          B. No one person participating in the Plan may receive options,
separately exercisable stock appreciation rights and direct stock issuances for
more than 1,000,000 shares of Common Stock in the aggregate over the term of the
Plan.

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          C. Should one or more outstanding options under this Plan (including
outstanding options under the Predecessor Plans incorporated into this Plan)
expire or terminate for any reason prior to exercise in full (including any
option cancelled in accordance with the cancellation-regrant provisions of
Section IV of Article Two of the Plan), then the shares subject to the portion
of each option not so exercised shall be available for subsequent option grant
or share issuance under this Plan. Unvested shares issued under the Plan and
subsequently cancelled or repurchased by the Corporation, at the original
exercise or issue price paid per share, pursuant to the Corporation's repurchase
rights under the Plan shall be added back to the number of shares of Common
Stock reserved for issuance under the Plan and shall accordingly be available
for reissuance through one or more subsequent option grants or direct stock
issuances under the Plan. However, shares subject to any option or portion
thereof surrendered or cancelled in accordance with Section V of Article Two
shall reduce on a share-for-share basis the number of shares of the same class
of Common Stock available for subsequent option grant or stock issuance under
the Plan. In addition, should the exercise price of an outstanding option under
the Plan be paid with shares of Common Stock or should shares of Common Stock
otherwise issuable under the Plan be withheld by the Corporation in satisfaction
of the withholding taxes incurred in connection with the exercise of an
outstanding option under the Plan, then the number of shares of Common Stock of
the same class available for issuance under the Plan shall be reduced by the
gross number of shares for which the option is exercised, and not by the net
number of shares of Common Stock actually issued to the option holder.

          D. In the event any change is made to the Common Stock issuable under
the Plan by reason of any stock split, stock dividend, recapitalization,
combination of shares, exchange of shares, conversion or other change affecting
the outstanding Common Stock, or any class of Common Stock as a class, without
the Corporation's receipt of consideration, then appropriate adjustments shall
be made to (i) the number and/or class of shares issuable under the Plan, (ii)
the number and/or class of securities for which any one person may be granted
stock options, separately exercisable stock appreciation rights and direct stock
issuances over the term of the Plan, and (iii) the number and/or class of shares
and price per share in effect under each outstanding option under this Plan
(including outstanding options incorporated into this Plan from the Predecessor
Plans). Such adjustments to the outstanding options are to be effected in a
manner which shall preclude the enlargement or dilution of rights and benefits
under such options. The adjustments determined by the Plan Administrator shall
be final, binding and conclusive.

          E. Common Stock issuable under the Discretionary Option Grant Program
or the Stock Issuance Program may be subject to such restrictions on transfer,
repurchase rights or other restrictions as determined by the Plan Administrator.

     VI. DETERMINATION OF FAIR MARKET VALUE

          The "Fair Market Value" of a share of Common Stock shall be determined
in accordance with the following provisions:

          - If shares of Common Stock to be valued are not at the time listed or
     admitted to trading on any national stock exchange but is traded on the
     Nasdaq National Market, the Fair Market Value shall be the closing selling
     price per share of a share of that class on the date in question, as such
     price is reported by the National Association of Securities Dealers on the
     Nasdaq National Market. If there is no reported closing selling price for
     the series on the date in question, then the closing selling price on the
     last preceding date for which such quotation exists shall be determinative
     of Fair Market Value.

          - If shares of the class of common stock to be valued are at the time
     listed or admitted to trading on any national stock exchange, then the Fair
     Market Value of a share of that class shall be the closing selling price
     per share on the date in question on the stock exchange determined by the
     Plan Administrator to be the primary market for the Common Stock, as such
     price is officially quoted in the composite tape of transactions on such
     exchange. If there is no reported sale of a share of the class on such
     exchange on the date in question, then the Fair Market Value shall be the
     closing selling price on the exchange on the last preceding date for which
     such quotation exists.

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                                   ARTICLE TWO

                       DISCRETIONARY OPTION GRANT PROGRAM

     I. TERMS AND CONDITIONS OF OPTIONS

          Options granted pursuant to this Article Two shall be authorized by
action of the Plan Administrator and, at the Plan Administrator's discretion,
may be either Incentive Options or Non-Statutory Options. Individuals who are
not Employees of the Corporation or its parent or subsidiary corporations may
only be granted Non-Statutory Options. Each granted option shall be evidenced by
one or more instruments in the form approved by the Plan Administrator;
provided, however, that each such instrument shall comply with the terms and
conditions specified below. Each instrument evidencing an Incentive Option
shall, in addition, be subject to the applicable provisions of Section II of
this Article Two.

          A. OPTION PRICE.

               (1) The option price per share shall be fixed by the Plan
Administrator. In no event, however, shall the price for any share be less than
eighty-five percent (85%) of the Fair Market Value of that share on the date of
the option grant.

               (2) The option price shall become immediately due upon exercise
of the option and, subject to the provisions of Article Six, Section II and the
instrument evidencing the grant, shall be payable in one of the following
alternative forms specified below:

                    - full payment in cash or check drawn to the Corporation's
               order;

                    - full payment in shares of Common Stock held for at least
               six (6) months and valued at Fair Market Value on the Exercise
               Date;

                    - full payment in a combination of shares of Common Stock
               held for at least six (6) months and valued at Fair Market Value
               on the Exercise Date and cash or check; or

                    - full payment through a broker-dealer sale and remittance
               procedure pursuant to which the Optionee (I) shall provide
               irrevocable instructions to a designated brokerage firm to effect
               the immediate sale of the purchased shares and remit to the
               Corporation, out of the sale proceeds available on the settlement
               date, sufficient funds to cover the aggregate option price
               payable for the purchased shares plus all applicable Federal and
               State income and employment taxes required to be withheld by the
               Corporation in connection with such purchase and (II) shall
               provide written directives to the Corporation to deliver the
               certificates for the purchased shares directly to such brokerage
               firm in order to complete the sale transaction.

               For purposes of this subparagraph (2), the Exercise Date shall be
the date on which written notice of the option exercise is delivered to the
Corporation. Except to the extent the sale and remittance procedure is utilized
in connection with the exercise of the option, payment of the option price for
the purchased shares must accompany such notice.

          B. TERM AND EXERCISE OF OPTIONS. Each option granted under this
Article Two shall be exercisable at such time or times and during such period as
is determined by the Plan Administrator and set forth in the stock option
agreement evidencing the grant. No such option, however, shall have a maximum
term in excess of ten (10) years from the grant date.

                                       5



          C. TERMINATION OF SERVICE.

               (1) Except to the extent otherwise provided pursuant to Section
VI of this Article Two, the following provisions shall govern the exercise
period applicable to any outstanding options under this Article Two which are
held by the Optionee at the time of his or her cessation of Service or death.

                    - Should an Optionee's Service terminate for any reason
               (including death or permanent disability as defined in Section
               22(e)(3) of the Internal Revenue Code) while the holder of one or
               more outstanding options under the Plan, then none of those
               options shall (except to the extent otherwise provided pursuant
               to Section VI of this Article Two) remain exercisable beyond the
               limited post-Service period designated by the Plan Administrator
               at the time of the option grant and set forth in the option
               agreement.

                    - Any option granted to an Optionee under this Article Two
               and exercisable in whole or in part on the date of the Optionee's
               death may be subsequently exercised, by the personal
               representative of the Optionee's estate or by the person or
               persons to whom the option is transferred pursuant to the
               Optionee's will or in accordance with the laws of descent and
               distribution, provided and only if such exercise occurs prior to
               the earlier of (i) the third anniversary of the date of the
               Optionee's death or (ii) the specified expiration date of the
               option term. Upon the occurrence of the earlier event, the option
               shall terminate and cease to be exercisable.

                    - Under no circumstances, however, shall any such option be
               exercisable after the specified expiration date of the option
               term.

                    - During the limited post-Service period of exercisability,
               the option may not be exercised in the aggregate for more than
               the number of shares for which the option is exercisable on the
               date the Optionee's Service terminates. Upon the expiration of
               such limited exercise period or (if earlier) upon the expiration
               of the option term, the option shall terminate and cease to be
               exercisable.

               (2) The Plan Administrator shall have complete discretion,
exercisable either at the time the option is granted or at any time while the
option remains outstanding:

                    - to permit one or more options held by the Optionee under
               this Article Two to be exercised, during the limited period of
               post-Service exercisability provided under subparagraph (1)
               above, not only with respect to the number of shares for which
               each such option is exercisable at the time of the Optionee's
               cessation of Service but also with respect to one or more
               subsequent installments of purchasable shares for which the
               option would otherwise have become exercisable had such cessation
               of Service not occurred, and

                    - to extend the period of time for which any option granted
               under this Article Two is to remain exercisable following the
               Optionee's cessation of Service or death from the limited period
               in effect under subparagraph (1) above to such greater period of
               time as the Plan Administrator shall deem appropriate; provided,
               however, that in no event shall such option be exercisable after
               the specified expiration date of the option term.

               (3) For purposes of the foregoing provisions of this Section I.C
(and for all other purposes under the Plan):

                    - The Optionee shall (except to the extent otherwise
               specifically provided in the applicable option or issuance
               agreement) be deemed to remain in the Service of the Corporation
               for so long as such individual renders services on a periodic
               basis to the Corporation (or any parent or subsidiary
               corporation) in the capacity of an Employee, a non-employee
               member of the Board or an independent consultant or advisor.

                                       6



                    - The Optionee shall be considered to be an Employee for so
               long as he or she remains in the employ of the Corporation or one
               or more parent or subsidiary corporations, subject to the control
               and direction of the employer entity not only as to the work to
               be performed but also as to the manner and method of performance.

               D. STOCKHOLDER RIGHTS. An Optionee shall have no stockholder
rights with respect to any shares covered by the option until such individual
shall have exercised the option, paid the option price for the purchased shares
and been issued a stock certificate for such shares.

               E. REPURCHASE RIGHTS. The Plan Administrator shall have the
discretion to grant options which are exercisable for unvested shares of Common
Stock. Should the Optionee cease Service while holding such unvested shares, the
Corporation shall have the right to repurchase, at the exercise price paid per
share, any or all of those unvested shares. The terms upon which such repurchase
right shall be exercisable (including the period and procedure for exercise and
the appropriate vesting schedule for the purchased shares) shall be established
by the Plan Administrator and set forth in the document evidencing such
repurchase right.

               F. LIMITED TRANSFERABILITY OF OPTIONS. During the lifetime of the
Optionee, Incentive Options shall be exercisable only by the Optionee and shall
not be assignable or transferable other than by will or by the laws of descent
and distribution following the Optionee's death. Non-Statutory Options may, to
the extent permitted by the Plan Administrator, be assigned in whole or in part
during the Optionee's lifetime to one or more members of the Optionee's
immediate family or to a trust established exclusively for one or more such
family members. The terms applicable to the assigned portion shall be the same
as those in effect for the option immediately prior to such assignment and shall
be set forth in such documents issued to the assignee as the Plan Administrator
may deem appropriate.

          II. INCENTIVE OPTIONS

               The terms and conditions specified below shall be applicable to
all Incentive Options granted under this Article Two. Incentive Options may only
be granted to individuals who are Employees of the Corporation. Options which
are specifically designated as "non-statutory" options when issued under the
Plan shall not be subject to such terms and conditions.

               A. OPTION PRICE. The option price per share of any share of
Common Stock subject to an Incentive Option shall in no event be less than one
hundred percent (100%) of the Fair Market Value of such share of Common Stock on
the grant date.

               B. DOLLAR LIMITATION. The aggregate Fair Market Value (determined
as of the respective date or dates of grant) of the Common Stock for which one
or more options granted to any Employee under this Plan (or any other option
plan of the Corporation or its parent or subsidiary corporations) may for the
first time become exercisable as incentive stock options under the Federal tax
laws during any one calendar year shall not exceed the sum of One Hundred
Thousand Dollars ($100,000). To the extent the Employee holds two or more such
options which become exercisable for the first time in the same calendar year,
the foregoing limitation on the exercisability of such options as Incentive
Options under the Federal tax laws shall be applied on the basis of the order in
which such options are granted.

               C. 10% STOCKHOLDER. If any Employee to whom an Incentive Option
is granted is a 10% Stockholder, then the exercise price per share shall not be
less than one hundred ten percent (110%) of the Fair Market Value per share of
the Common Stock on the option grant date, and the option term shall not exceed
five (5) years measured from the option grant date.

               Except as modified by the preceding provisions of this Section
II, the provisions of Articles One, Two and Six of the Plan shall apply to all
Incentive Options granted hereunder.

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          III. CORPORATE TRANSACTIONS

               A. For purposes of this Section III, a "Corporate Transaction"
shall mean any one of the following stockholder-approved transactions:

               (i) a merger or consolidation in which the Corporation is not the
          surviving entity, except for a transaction the principal purpose of
          which is to change the State of the Corporation's incorporation,

               (ii) the sale, transfer or other disposition of all or
          substantially all of the assets of the Corporation in liquidation or
          dissolution of the Corporation, or

               (iii) any reverse merger in which the Corporation is the
          surviving entity but in which securities possessing more than fifty
          percent (50%) of the total combined voting power of the Corporation's
          outstanding securities are transferred to holders different from those
          who held such securities immediately prior to such merger.

               B. Each outstanding option which is assumed in connection with a
Corporate Transaction or is otherwise to continue in effect shall be
appropriately adjusted, immediately after such Corporate Transaction, to apply
and pertain to the number and class of securities which would be issuable, in
consummation of such Corporate Transaction, to an actual holder of the same
number of shares of Common Stock as are subject to such option immediately prior
to such Corporate Transaction, and appropriate adjustments shall also be made to
the option price payable per share, provided the aggregate option price payable
for such securities shall remain the same. Appropriate adjustments shall also be
made to the class and number of securities available for issuance under the Plan
on both an aggregate and per participant basis following the consummation of
such Corporate Transaction.

               C. The grant of options under this Article Two shall in no way
affect the right of the Corporation to adjust, reclassify, reorganize or
otherwise change its capital or business structure or to merge, consolidate,
dissolve, liquidate or sell or transfer all or any part of its business or
assets.

          IV. CANCELLATION AND REGRANT OF OPTIONS

               The Plan Administrator shall have the authority to effect, at any
time and from time to time, with the consent of the affected Optionees, the
cancellation of any or all outstanding options under this Article Two (including
outstanding options under the Predecessor Plans incorporated into this Plan) and
to grant in substitution new options under this Article Two covering the same or
different numbers of shares of Common Stock but having an option price for each
share which is not less than (i) eighty-five percent (85%) of the Fair Market
Value of such share on the new grant date or (ii) one hundred percent (100%) of
such Fair Market Value in the case of an Incentive Option.

          V. STOCK APPRECIATION RIGHTS

               A. Provided and only if the Plan Administrator determines in its
discretion to implement the stock appreciation right provisions of this Section
V, one or more Optionees under the Discretionary Option Grant Program may be
granted the right, exercisable upon such terms and conditions as the Plan
Administrator may establish, to surrender all or part of an unexercised option
under this Article Two in exchange for a distribution from the Corporation in an
amount equal to the excess of (i) the Fair Market Value (on the option surrender
date) of the number of shares in which the Optionee is at the time vested under
the surrendered option (or surrendered portion thereof) over (ii) the aggregate
option price payable for such vested shares.

               B. No surrender of an option shall be effective hereunder unless
it is approved by the Plan Administrator. If the surrender is so approved, then
the distribution to which the Optionee shall accordingly become entitled under
this Section V may be made in shares of any class of Common Stock valued at Fair
Market Value on the option surrender date, in cash, or partly in shares and
partly in cash, as the Plan Administrator shall in its sole discretion deem
appropriate.

                                        8



               C. If the surrender of an option is rejected by the Plan
Administrator, then the Optionee shall retain whatever rights the Optionee had
under the surrendered option (or surrendered portion thereof) on the option
surrender date and may exercise such rights at any time prior to the later of
(i) five (5) business days after the receipt of the rejection notice or (ii) the
last day on which the option is otherwise exercisable in accordance with the
terms of the instrument evidencing such option, but in no event may such rights
be exercised more than ten (10) years after the date of the option grant.

               D. One or more officers of the Corporation subject to the
short-swing profit restrictions of the Federal securities laws may, in the Plan
Administrator's sole discretion, be granted limited stock appreciation rights in
tandem with their outstanding options under this Article Two. Upon the
occurrence of a Hostile Take-Over effected at any time when the Corporation's
outstanding Common Stock is registered under Section 12(g) of the 1934 Act, each
outstanding option with such a limited stock appreciation right shall
automatically be cancelled, to the extent such option is at the time exercisable
for fully-vested shares of Common Stock. The Optionee shall in return be
entitled to a cash distribution from the Corporation in an amount equal to the
excess of (i) the Take-Over Price of the vested shares of Common Stock at the
time subject to the cancelled option (or cancelled portion of such option) over
(ii) the aggregate exercise price payable for such shares. The cash distribution
payable upon such cancellation shall be made within five (5) days following the
consummation of the Hostile Take-Over. The Plan Administrator shall pre-approve,
at the time the limited right is granted, the subsequent exercise of that right
in accordance with the terms of the grant and the provisions of this Section
V.D. No additional approval of the Plan Administrator or the Board shall be
required at the time of the actual option cancellation and cash distribution.
The balance of the option (if any) shall continue to remain outstanding and
exercisable in accordance with the terms of the instrument evidencing such
grant.

               E. For purposes of Section V.D, the following definitions shall
be in effect:

                    A HOSTILE TAKE-OVER shall be deemed to occur in the event
               any person or related group of persons (other than the
               Corporation or a person that directly or indirectly controls, is
               controlled by, or is under common control with, the Corporation)
               directly or indirectly acquires beneficial ownership (within the
               meaning of Rule 13d-3 of the 1934 Act) of securities possessing
               more than fifty percent (50%) of the total combined voting power
               of the Corporation's outstanding securities pursuant to a tender
               or exchange offer made directly to the Corporation's stockholders
               which the Board does not recommend such stockholders to accept.

                    The TAKE-OVER PRICE per share shall be deemed to be equal to
               the greater of (a) the Fair Market Value per share on the date of
               cancellation, as determined pursuant to the valuation provisions
               of Section VI of Article One, or (b) the highest reported price
               per share paid in effecting such Hostile Take-Over. However, if
               the cancelled option is an Incentive Option, the Take-Over Price
               shall not exceed the clause (a) price per share.

               F. The shares of Common Stock subject to any option surrendered
or cancelled for an appreciation distribution pursuant to this Section V shall
not be available for subsequent option grant under the Plan.

                                       9



                                  ARTICLE THREE

                         AUTOMATIC OPTION GRANT PROGRAM

          I. TERMS AND CONDITIONS OF AUTOMATIC OPTION GRANTS

               A. Grant Dates. Option grants will be made under this Article
Three on the dates specified below:

               (1) Each individual who first becomes a non-employee Board member
          on or after the date of the 1998 Annual Meeting, whether through
          election by the Corporation's stockholders or appointment by the
          Board, shall automatically be granted, at the time of such initial
          election or appointment, a Non-Statutory Option to purchase 20,000
          shares of Common Stock upon the terms and conditions of this Article
          Three, provided SUCH INDIVIDUAL HAS NOT OTHERWISE BEEN IN THE PRIOR
          EMPLOY OF THE CORPORATION.

               (2) On the date of each Annual Stockholders Meeting, beginning
          with the 1998 Annual Meeting, each individual re-elected as a
          non-employee Board member at such Annual Meeting shall automatically
          be granted a Non-Statutory Option to purchase 10,000 shares of Common
          Stock upon the terms and conditions of this Article Three. There shall
          be no limit on the number of 10,000-share option grants any one
          non-employee Board member may receive over the period of Board
          service, and non-employee Board members previously in the
          Corporation's employ shall be entitled to one or more such annual
          option grants over his or her period of Board service.

               B. EXERCISE PRICE. The exercise price per share of each automatic
option grant made under this Article Three shall be equal to one hundred percent
(100%) of the Fair Market Value per share of the Common Stock on the date of
grant under this Automatic Option Grant Program.

               C. PAYMENT.

               The exercise price shall be payable in one of the alternative
forms specified below:

               (i) full payment in cash or check drawn to the Corporation's
          order;

               (ii) full payment in shares of Common Stock held for at least six
          (6) months and valued at Fair Market Value on the Exercise Date (as
          such term is defined below);

               (iii) full payment in a combination of shares of Common Stock
          held for at least six (6) months and valued at Fair Market Value on
          the Exercise Date and cash or check; or

               (iv) full payment through a broker-dealer sale and remittance
          procedure pursuant to which the non-employee Board member (A) shall
          provide irrevocable instructions to a designated brokerage firm to
          effect the immediate sale of the purchased shares and remit to the
          Corporation, out of the sale proceeds available on the settlement
          date, sufficient funds to cover the aggregate option price payable for
          the purchased shares plus all applicable Federal and state income
          taxes required to be withheld by the Corporation in connection with
          such purchase and (B) shall provide written directives to the
          Corporation to deliver the certificates for the purchased shares
          directly to such brokerage firm in order to complete the sale
          transaction.

               For purposes of this paragraph C, the Exercise Date shall be the
date on which written notice of the option exercise is delivered to the
Corporation. Except to the extent the sale and remittance procedure is utilized

                                       10



in connection with the exercise of the option, payment of the option price for
the purchased shares must accompany such notice.

               D. OPTION TERM. Each automatic grant under this Article Three
shall have a term of ten (10) years measured from the automatic grant date.

               E. EXERCISABILITY. Each automatic grant shall become exercisable
in full one (1) year after the automatic grant date. The option shall not become
exercisable for any additional option shares after the optionee has ceased for
any reason to be a member of the Board.

               F. EFFECT OF TERMINATION OF BOARD MEMBERSHIP.

                    (1) Should the optionee cease to serve as a Board member for
any reason (other than death) while holding one or more automatic option grants
under this Article Three, then such optionee shall have a three (3) month period
following the date of such cessation of Board service in which to exercise each
such option for any or all of the shares of Common Stock for which the option
was exercisable at the time of such cessation of Board service. Each such option
shall immediately terminate and cease to be outstanding, at the time of such
cessation of Board service, with respect to any shares for which the option is
not otherwise at that time exercisable.

                    (2) Should the optionee die while serving as a Board member
or within three (3) months after cessation of Board service, then each
outstanding automatic option grant held by the optionee at the time of death may
subsequently be exercised, for any or all of the shares of Common Stock for
which the option was exercisable at the time of the optionee's cessation of
Board service (less any option shares subsequently purchased by the optionee
prior to death), by the personal representative of the optionee's estate or by
the person or persons to whom the option is transferred pursuant to the
optionee's will or in accordance with the laws of descent and distribution. Any
such exercise must occur within thirty-six (36) months after the date of the
optionee's death. However, each such automatic option grant shall immediately
terminate and cease to be outstanding, at the time of the optionee's cessation
of Board service, with respect to any option shares for which it is not
otherwise at such time exercisable.

                    (3) In no event shall any automatic grant under this Article
Three remain exercisable after the specified expiration date of the ten
(10)-year option term. Upon the expiration of the applicable exercise period in
accordance with subparagraphs (1) and (2) above or (if earlier) upon the
expiration of the ten (10)-year option term, the automatic grant shall terminate
and cease to be outstanding for any unexercised shares for which the option was
exercisable at the time of the optionee's cessation of Board service.

               G. STOCKHOLDER RIGHTS. The holder of an automatic option grant
under this Article Three shall have none of the rights of a stockholder with
respect to any shares subject to such option until such individual shall have
exercised the option, paid the exercise price for the purchased shares and been
issued a stock certificate for such shares.

          II. CORPORATE TRANSACTION

               A. For purposes of this Section II, a "Corporate Transaction"
shall be one or more of the following stockholder-approved transactions:

               (i) a merger or consolidation in which the Corporation is not the
          surviving entity, except for a transaction the principal purpose of
          which is to change the State of the Corporation's incorporation,

               (ii) the sale, transfer or disposition of all or substantially
          all of the assets of the Corporation in liquidation or dissolution of
          the Corporation, or

               (iii) any reverse merger in which the Corporation is the
          surviving entity but in which securities possessing more than fifty
          percent (50%) of the total combined


                                       11



          voting power of the Corporation's outstanding securities are
          transferred to holders different from those who held such securities
          immediately prior to such merger

               B. In the event of any Corporate Transaction, the shares of
Common Stock at the time subject to each outstanding option but not otherwise
vested shall automatically vest in full so that each such option shall,
immediately prior to the effective date of the Corporate Transaction, become
fully exercisable for all of the shares of Common Stock at the time subject to
such option and may be exercised for all or any portion of those shares as
fully-vested shares of Common Stock. Immediately following the consummation of
the Corporate Transaction, each automatic option grant shall terminate and cease
to be outstanding, except to the extent assumed by the successor corporation (or
parent thereof).

               C. Each outstanding option which is assumed in connection with a
Corporate Transaction or is otherwise to continue in effect shall be
appropriately adjusted, immediately after such Corporate Transaction, to apply
and pertain to the number and class of securities which would be issuable, in
consummation of such Corporate Transaction, to an actual holder of the same
number of shares of Common Stock as are subject to such option immediately prior
to such Corporate Transaction, and appropriate adjustments shall also be made to
the option price payable per share, provided the aggregate option price payable
for such securities shall remain the same.

               D. The grant of options under this Article Three shall in no way
affect the right of the Corporation to adjust, reclassify, reorganize or
otherwise change its capital or business structure or to merge, consolidate,
dissolve, liquidate or sell or transfer all or any part of its business or
assets.

          III. REMAINING TERMS

               The remaining terms of each option granted under the Automatic
Option Grant Program shall be the same as the terms in effect for options made
under the Discretionary Option Grant Program.

                                       12




                                  ARTICLE FOUR

                             STOCK ISSUANCE PROGRAM

          I. TERMS AND CONDITIONS OF STOCK ISSUANCES

               Shares of Common Stock may be issued under the Stock Issuance
Program through direct and immediate purchases without any intervening stock
option grants. The issued shares shall be evidenced by a Stock Issuance
Agreement ("Issuance Agreement") that complies with the terms and conditions of
this Article Four.

               A. CONSIDERATION

                    (1) Shares of Common Stock drawn from the Corporation's
authorized but unissued shares of Common Stock ("Newly Issued Shares") shall be
issued under the Plan for one or more of the following items of consideration
which the Plan Administrator may deem appropriate in each individual instance:

               (i) cash or cash equivalents (such as a personal check or bank
          draft) paid the Corporation;

               (ii) a promissory note payable to the Corporation's order in one
          or more installments, which may be subject to cancellation in whole or
          in part upon terms and conditions established by the Plan
          Administrator; or

               (iii) past services rendered to the Corporation or any parent or
          subsidiary corporation.

                    (2) Newly Issued Shares may, in the absolute discretion of
the Plan Administrator, be issued for consideration with a value less than
one-hundred percent (100%) of the Fair Market Value of such shares, but in no
event less than eighty-five percent (85%) of such Fair Market Value.

                    (3) Shares of Common Stock reacquired by the Corporation and
held as treasury shares ("Treasury Shares") may be issued under this Article
Four for such consideration (in whatever form) as the Plan Administrator may
deem appropriate. Accordingly, such Treasury Shares may, in lieu of any cash
consideration, be issued subject to such vesting requirements tied to the
Participant's period of future Service or the Corporation's attainment of
specified performance objectives as the Plan Administrator may establish at the
time of issuance.

               B. VESTING PROVISIONS

                    (1) Shares of Common Stock issued under this Article Four
may, in the absolute discretion of the Plan Administrator, be fully and
immediately vested upon issuance or may vest in one or more installments over
the Participant's period of Service (as such term is defined in Section I.C.(3)
of Article Two). The elements of the vesting schedule applicable to any unvested
shares of Common Stock issued under the Plan, namely:

               (i) the Service period to be completed by the Participant or the
          performance objectives to be achieved by the Corporation,

               (ii) the number of installments in which the shares are to vest,

               (iii) the interval or intervals (if any) which are to lapse
          between installments, and

               (iv) the effect which death, disability or other event designated
          by the Plan Administrator is to have upon the vesting schedule,

                                       13




shall be determined by the Plan Administrator and incorporated into the Issuance
Agreement executed by the Corporation and the Participant at the time such
unvested shares are issued.

                    (2) The Participant shall have full stockholder rights with
respect to any shares of Common Stock issued to him or her under this Article
Four, whether or not his or her interest in those shares is vested. Accordingly,
the Participant shall have the right to vote such shares and to receive any
regular cash dividends paid on such shares. Any new, additional or different
shares of stock or other property (including money paid other than as a regular
cash dividend) which the Participant may have the right to receive with respect
to his or her unvested shares by reason of any stock dividend, stock split,
reclassification of Common Stock or other similar change in the Corporation's
capital structure shall be issued, subject to (i) the same vesting requirements
applicable to his or her unvested shares and (ii) such escrow arrangements as
the Plan Administrator shall deem appropriate.

                    (3) Should the Participant cease to remain in Service while
holding one or more unvested shares of Common Stock under this Article Four,
then those shares shall be immediately surrendered to the Corporation for
cancellation, and the Participant shall have no further stockholder rights with
respect to those shares. To the extent the surrendered shares were previously
issued to the Participant for consideration paid in cash or cash equivalent
(including the Participant's purchase-money promissory note), the Corporation
shall repay to the Participant the cash consideration paid for the surrendered
shares and shall cancel the principal balance of any outstanding purchase-money
note of the Participant to the extent attributable to such surrendered shares.
The surrendered shares may, at the Plan Administrator's discretion, be retained
by the Corporation as Treasury Shares or may be retired to authorized but
unissued share status.

                    (4) The Plan Administrator may in its discretion elect to
waive the surrender and cancellation of one or more unvested shares of Common
Stock (or other assets attributable thereto) which would otherwise occur upon
the non-completion of the vesting schedule applicable to such shares. Such
waiver shall result in the immediate vesting of the Participant's interest in
the shares of Common Stock as to which the waiver applies. Such waiver may be
effected at any time, whether before or after the Participant's cessation of
Service or the attainment or non-attainment of the applicable performance
objectives.

          II. TRANSFER RESTRICTIONS/SHARE ESCROW

                    A. Unvested shares under this Article Four may, in the Plan
Administrator's discretion, be held in escrow by the Corporation until the
Participant's interest in such shares vests or may be issued directly to the
Participant with restrictive legends on the certificates evidencing such
unvested shares. To the extent an escrow arrangement is utilized, the unvested
shares and any securities or other assets issued with respect to such shares
(other than regular cash dividends) shall be delivered in escrow to the
Corporation to be held until the Participant's interest in such shares (or other
securities or assets) vests. Alternatively, if the unvested shares are issued
directly to the Participant, the restrictive legend on the certificates for such
shares shall read substantially as follows:

          "THE SHARES REPRESENTED BY THIS CERTIFICATE ARE UNVESTED AND ARE
          ACCORDINGLY SUBJECT TO (I) CERTAIN TRANSFER RESTRICTIONS AND TO (II)
          CANCELLATION OR REPURCHASE IN THE EVENT THE REGISTERED HOLDER (OR
          HIS/HER PREDECESSOR IN INTEREST) CEASES TO REMAIN IN THE CORPORATION'S
          SERVICE. SUCH TRANSFER RESTRICTIONS AND THE TERMS AND CONDITIONS OF
          SUCH CANCELLATION OR REPURCHASE ARE SET FORTH IN A STOCK ISSUANCE
          AGREEMENT BETWEEN THE CORPORATION AND THE REGISTERED HOLDER (OR
          HIS/HER PREDECESSOR IN INTEREST) DATED________ , 20___ , A COPY OF
          WHICH IS ON FILE AT THE PRINCIPAL OFFICE OF THE CORPORATION."

                    B. The Participant shall have no right to transfer any
unvested shares of Common Stock issued to him or her under this Article Four.
For purposes of this restriction, the term "transfer" shall include (without
limitation) any sale, pledge, assignment, encumbrance, gift, or other
disposition of such shares, whether voluntary or involuntary. Upon any such
attempted transfer, the unvested shares shall immediately be cancelled,

                                       14



and neither the Participant nor the proposed transferee shall have any rights
with respect to those shares. However, the Participant shall have the right to
make a gift of unvested shares acquired under the Plan to his or her spouse or
issue, including adopted children, or to a trust established for such spouse or
issue, provided the donee of such shares delivers to the Corporation a written
agreement to be bound by all the provisions of the Plan and the Issuance
Agreement applicable to the gifted shares.

                                       15



                                  ARTICLE FIVE

                        DIRECTOR FEE OPTION GRANT PROGRAM

          I. OPTION GRANTS

               Each non-employee Board member may, commencing with the 1999
calendar year, elect to apply all or any portion of the fee otherwise payable to
him or her in cash each year for his or her Board service to the acquisition of
a special option grant under this Director Fee Option Grant Program. Such
election must be filed with the Corporation's Chief Financial Officer prior to
last day of December in the calendar year immediately preceding the calendar
year for which the fee subject of that election is otherwise payable. Each
non-employee Board member who files such a timely election shall automatically
be granted an option under this Director Fee Option Grant Program on the first
trading day in January in the calendar year for which the fee subject of that
election would otherwise be payable. Until the Corporation establishes an annual
retainer fee for the non-employee Board members, the dollar amount of the fee
subject to the Board member's election each year shall be equal to the number of
regularly-scheduled Board meetings for that year multiplied by the per Board
meeting fee in effect for such year. Stockholder approval of the 1998
Restatement at the 1998 Annual Stockholders Meeting constitutes pre-approval of
each option subsequently granted pursuant to the express terms of this Director
Fee Option Grant Program and the subsequent exercise of that option in
accordance with its terms.

          II. OPTION TERMS

               Each option shall be a Non-Statutory Option governed by the terms
and conditions specified below.

               A. EXERCISE PRICE.

                    1. The exercise price per share shall be thirty-three and
one-third percent (33-1/3%) of the Fair Market Value per share of Common Stock
on the option grant date.

                    2. The exercise price shall become immediately due upon
exercise of the option and shall be payable in one or more of the alternative
forms authorized under the Discretionary Option Grant Program. Except to the
extent the sale and remittance procedure specified thereunder is utilized,
payment of the exercise price for the purchased shares must be made on the
Exercise Date.

                    B. NUMBER OF OPTION SHARES. The number of shares of Common
Stock subject to the option shall be determined pursuant to the following
formula (rounded down to the nearest whole number):

                    X = A / (B x 66-2/3%), where

                    X is the number of option shares,

                    A is the portion of the annual retainer fee subject to
                    the non-employee Board member's election, and

                    B is the Fair Market Value per share of Common Stock on the
                    option grant date.

                    C. EXERCISE AND TERM OF OPTIONS. The option shall become
exercisable in a series of twelve (12) successive equal monthly installments
upon the Optionee's completion of each calendar month of Board service in the
calendar year for which the annual retainer fee which is the subject of his or
her election under this Article Five would otherwise be payable. Each option
shall have a maximum term of ten (10) years measured from the option grant date.

                    D. EFFECT OF TERMINATION OF SERVICE. Should the optionee
cease Board service for any reason (other than death or permanent disability as
defined in Section 22(e)(3) of the Internal Revenue Code) while

                                       16



holding one or more options under this Article Five, then each such option shall
remain exercisable, for any or all of the shares for which the option is
exercisable at the time of such cessation of Board service, until the earlier of
(i) the expiration of the ten (10)-year option term or (ii) the expiration of
the three (3)-year period measured from the date of such cessation of Board
service. However, each option held by the optionee under this Article Five at
the time of his or her cessation of Board service shall immediately terminate
and cease to remain outstanding with respect to any and all shares of Common
Stock for which the option is not otherwise at that time exercisable.

                    E. DEATH OR PERMANENT DISABILITY. Should the Optionee's
service as a Board member cease by reason of death or permanent disability as
defined in Section 22(e)(3) of the Internal Revenue Code, then each option held
by such optionee under this Article Five shall immediately become exercisable
for all the shares of Common Stock at the time subject to that option, and the
option may, during the three (3)-year period following such cessation of Board
service, be exercised for any or all of those shares as fully-vested shares.

                    Should the optionee die while holding one or more options
under this Article Five, then each such option may be exercised, for any or all
of the shares for which the option is exercisable at the time of the optionee's
cessation of Board service (less any shares subsequently purchased by optionee
prior to death), by the personal representative of the optionee's estate or by
the person or persons to whom the option is transferred pursuant to the
optionee's will or in accordance with the laws of descent and distribution. Such
right of exercise shall lapse, and the option shall terminate, upon the earlier
of (i) the expiration of the ten (10)-year option term or (ii) the three
(3)-year period measured from the date of the optionee's cessation of Board
service.

          III. CORPORATE TRANSACTION

                    A. For purposes of this Section III, a "Corporate
Transaction" shall be one or more of the following stockholder-approved
transactions:

          (i) a merger or consolidation in which the Corporation is not the
     surviving entity, except for a transaction the principal purpose of which
     is to change the State of the Corporation's incorporation,

          (ii) the sale, transfer or disposition of all or substantially all of
     the assets of the Corporation in liquidation or dissolution of the
     Corporation, or

          (iii) any reverse merger in which the Corporation is the surviving
     entity but in which securities possessing more than fifty percent (50%) of
     the total combined voting power of the Corporation's outstanding securities
     are transferred to holders different from those who held such securities
     immediately prior to such merger

                    B. In the event of any Corporate Transaction, the shares of
Common Stock at the time subject to each outstanding option but not otherwise
vested shall automatically vest in full so that each such option shall,
immediately prior to the effective date of the Corporate Transaction, become
fully exercisable for all of the shares of Common Stock at the time subject to
such option and may be exercised for all or any portion of those shares as
fully-vested shares of Common Stock. Immediately following the consummation of
the Corporate Transaction, each director fee option grant shall terminate and
cease to be outstanding, except to the extent assumed by the successor
corporation (or parent thereof).

                    C. Each outstanding option which is assumed in connection
with a Corporate Transaction or is otherwise to continue in effect shall be
appropriately adjusted, immediately after such Corporate Transaction, to apply
and pertain to the number and class of securities which would be issuable, in
consummation of such Corporate Transaction, to an actual holder of the same
number of shares of Common Stock as are subject to such option immediately prior
to such Corporate Transaction, and appropriate adjustments shall also be made to
the option price payable per share, provided the aggregate option price payable
for such securities shall remain the same.

                                       17



                    D. The grant of options under this Article Five shall in no
way affect the right of the Corporation to adjust, reclassify, reorganize or
otherwise change its capital or business structure or to merge, consolidate,
dissolve, liquidate or sell or transfer all or any part of its business or
assets.

          IV. REMAINING TERMS

                    The remaining terms of each option granted under this
Director Fee Option Grant Program shall be the same as the terms in effect for
option grants made under the Discretionary Option Grant Program.


                                       18




                                   ARTICLE SIX

                                  MISCELLANEOUS

          I. EFFECT OF TRANSACTIONS ON OUTSTANDING OPTIONS

               A. Prior to the Effective Date of the Plan, the Company's
outstanding common stock was reclassified as Series B Common Stock and subjected
to a 3 for 4 reverse stock split. As part of the same transaction, one-third of
a share of newly authorized Series A Common Stock was distributed with respect
to each outstanding share of Series B Common Stock. Under the Company's 1988
Stock Option Plan and each of the options outstanding as of the record date for
such dividend ("Affected Option"), which options are incorporated under this
Plan, appropriate adjustment must be made to the outstanding options to reflect
such reverse stock split and stock dividend. Such appropriate adjustments were
as follows:

                    1. The aggregate number of shares of Common Stock available
under any Affected Option shall be unchanged by the reverse stock split and
stock dividend, but 75% of such total number shares of Common Stock available
under such options shall be Class B Common Stock and 25% of such total number
shall be Class A Common Stock.

                    2. The option price per share for each share of stock
available under an Affected Option will remain unchanged, and the aggregate
option price for all shares available under the option will remain unchanged.

                    3. Any vesting schedule imposed under an Affected Option
will be applied separately to the total Class A and Class B Common Stock so that
on each vesting date the holder will vest in one Class A share for every three
shares of Class B Common Stock vesting on such date.

                    4. Option holders may separately exercise all or any portion
of the vested options of either Class of Common Stock.

               B. As a result of a Conversion pursuant to the terms of the
Company's Certificate of Incorporation, all outstanding shares of Class A Common
Stock of the Corporation were converted into 1.33 shares of Class B Common Stock
(which became the only outstanding class of Common Stock of the Corporation).
Under this Plan, each outstanding option to purchase shares of Class A Common
Stock must be adjusted to reflect such conversion. Such adjustments are as
follows:

                    1. Each option to purchase a share of Class A Common Stock
(a "Converted Option") is automatically converted into an option to purchase
1.33 shares of Common Stock.

                    2. The aggregate option price per share for each Converted
Option will remain unchanged, but the price per share for each share of Common
Stock under a Converted Option will equal the purchase price payable for a share
of Class A Common Stock divided by 1.33.

                    3. Any remaining vesting schedule imposed under a Converted
Option will apply to the Common Stock available under such Option.

          II. LOANS

               A. The Plan Administrator may, in its discretion, assist any
Optionee or Participant (including an Optionee or Participant who is an officer
of the Corporation) in the exercise of one or more options granted to such
Optionee under the Article Two Discretionary Option Grant Program or the
purchase of one or more shares issued to such Participant under the Article Four
Stock Issuance Program, including the satisfaction of any Federal and State
income and employment tax obligations arising therefrom by (i) authorizing the
extension of a loan from the Corporation to such Optionee or Participant or (ii)
permitting the Optionee or Participant to pay the option price or purchase price
for the purchased Common Stock in installments over a period of years. The terms
of

                                       19



any loan or installment method of payment (including the interest rate and terms
of repayment) will be upon such terms as the Plan Administrator specifies in the
applicable option or issuance agreement or otherwise deems appropriate under the
circumstances. Loans and installment payments may be granted with or without
security or collateral (other than to individuals who are consultants or
independent contractors, in which event the loan must be adequately secured by
collateral other than the purchased shares). However, the maximum credit
available to the Optionee or Participant may not exceed the option or purchase
price of the acquired shares (less the par value of such shares) plus any
Federal and State income and employment tax liability incurred by the Optionee
or Participant in connection with the acquisition of such shares.

               B. The Plan Administrator may, in its absolute discretion,
determine that one or more loans extended under this financial assistance
program shall be subject to forgiveness by the Corporation in whole or in part
upon such terms and conditions as the Plan Administrator may deem appropriate.

          III. TAX WITHHOLDING

               A. The Company's obligation to deliver shares or cash upon the
exercise of stock options or stock appreciation rights granted under the
Discretionary Option Grant Program or upon direct issuance under the Stock
Issuance Program shall be subject to the satisfaction of all applicable Federal,
State and local income and employment tax withholding requirements.

               B. The Plan Administrator may, in its discretion and upon such
terms and conditions as it may deem appropriate provide any or all holders of
outstanding option grants under the Discretionary Option Grant Program with the
election to have the Company withhold, from the shares of Common Stock otherwise
issuable upon the exercise of such options, a portion of such shares with an
aggregate Fair Market Value equal to the designated percentage (up to 100% as
specified by the optionee) of the Federal and State income taxes ("Taxes")
incurred in connection with the acquisition of such shares. In lieu of such
direct withholding, one or more option holders may also be granted the right to
deliver shares of Common Stock to the Company in satisfaction of such Taxes. The
withheld or delivered shares shall be valued at the Fair Market Value on the
applicable determination date for such Taxes.

          IV. AMENDMENT OF THE PLAN AND AWARDS

               A. The Board has complete and exclusive power and authority to
amend or modify the Plan (or any component thereof) in any or all respects
whatsoever. No amendment or modification may adversely affect the rights and
obligations of an Optionee with respect to options at the time outstanding under
the Plan, nor adversely affect the rights of any Participant with respect to
Common Stock issued under the Plan prior to such action, unless the Optionee or
Participant consents to such amendment or modification. In addition, certain
amendments may require stockholder approval if so determined by the Board or
pursuant to applicable laws or regulations.

               B. (i) Options to purchase shares of Common Stock may be granted
under the Discretionary Option Grant Program or the Automatic Option Grant
Program and (ii) shares of Common Stock may be issued under the Stock Issuance
Program, which are in both instances in excess of the number of shares then
available for issuance under the Plan, provided any excess shares actually
issued under the Option Grant Program, the Automatic Option Grant Program or the
Stock Issuance Program are held in escrow until stockholder approval is obtained
for a sufficient increase in the number of shares available for issuance under
the Plan. If such stockholder approval is not obtained within twelve (12) months
after the date the first such excess option grants or excess share issuances are
made, then (I) any unexercised excess options shall terminate and cease to be
exercisable and (II) the Corporation shall promptly refund the purchase price
paid for any excess shares actually issued under the Plan and held in escrow,
together with interest (at the applicable Short Term Federal Rate) for the
period the shares were held in escrow.

               C. Effective as of March 8, 2001, the Board amended and restated
the Plan to increase the maximum number of shares of Common Stock authorized for
issuance over the term of the Plan from 9,573,457 shares to 10,323,457 shares.
This amendment was approved by the stockholders at the 2001 Annual Meeting. All
option grants and direct stock issuances made prior to the amendment shall
remain outstanding in accordance with

                                       20



the terms and conditions of the respective instruments evidencing those options
or issuances, and nothing in the amendment shall be deemed to modify or in any
way affect those outstanding options or issuances. The Plan Administrator may
make option grants and direct stock issuances under the Plan at any time before
the date fixed herein for the termination of the Plan.

          V. EFFECTIVE DATE AND TERM OF PLAN

               A. This Plan, as successor to the Company's Predecessor Plans,
became effective as of the Effective Date, and no further option grants shall be
made under the Option Plan nor shall any further shares be issued under the
Stock Plan from and after such Effective Date.

               B. Each outstanding option and share issuance under the
Predecessor Plans immediately prior to the Effective Date of this Plan are
hereby incorporated into this Plan and shall accordingly be treated as an
outstanding option or share issuance under this Plan. Each such option or share
issuance shall continue to be governed solely by the terms and conditions of the
instrument evidencing such grant or issuance, and except as otherwise expressly
provided in this Plan, no provision of this Plan shall affect or otherwise
modify the rights or obligations of the holders of such options or shares with
respect to their acquisition of shares of Common Stock, or otherwise modify the
rights or obligations of the holders of such options or shares.

               C. The sale and remittance procedure authorized for the exercise
of outstanding options under this Plan shall be available for all options
granted under this Plan on or after the Effective Date and for all Non-Statutory
Options outstanding under the Option Plan and incorporated into this Plan. The
Plan Administrator may also allow such procedure to be utilized in connection
with one or more disqualifying dispositions of Incentive Option shares effected
after the Effective Date, whether such Incentive Options were granted under this
Plan or the Option Plan.

               D. The Plan shall terminate upon the earlier of (i) November 16,
2002, or (ii) the date on which all shares available for issuance under the Plan
shall have been issued or cancelled pursuant to the exercise, surrender or
cash-out of the options granted under the Discretionary Option Grant Program or
the issuance of shares (whether vested or unvested) under the Stock Issuance
Program. If the date of termination is determined under clause (i) above, then
all option grants and unvested stock issuances outstanding on such date shall
thereafter continue to have force and effect in accordance with the provisions
of the instruments evidencing such grants or issuances.

          VI. USE OF PROCEEDS

               Cash proceeds received by the Company from the sale of shares
under the Plan shall be used for general corporate purposes.

          VII. REGULATORY APPROVALS

               A. The implementation of the Plan, the granting of any option
under the Discretionary Option Grant Program, the issuance of any shares under
the Stock Issuance Program, and the issuance of Common Stock upon the exercise
or surrender of the option grants made hereunder shall be subject to the
Corporation's procurement of all approvals and permits required by regulatory
authorities having jurisdiction over the Plan, the options granted under it, and
the Common Stock issued pursuant to it.

               B. No shares of Common Stock or other assets shall be issued or
delivered under this Plan unless and until there shall have been compliance with
all applicable requirements of Federal and State securities laws, including the
filing and effectiveness of the Form S-8 registration statement for the shares
of Common Stock issuable under the Plan, and all applicable listing requirements
of any securities exchange on which stock of the same class is then listed.

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          VIII. NO EMPLOYMENT/SERVICE RIGHTS

               Neither the action of the Corporation in establishing the Plan,
nor any action taken by the Plan Administrator hereunder, nor any provision of
the Plan shall be construed so as to grant any individual the right to remain in
the employ or service of the Corporation (or any parent or subsidiary
corporation) for any period of specific duration, and the Corporation (or any
parent or subsidiary corporation retaining the services of such individual) may
terminate such individual's employment or service at any time and for any
reason, with or without cause.

          IX. MISCELLANEOUS PROVISIONS

               The provisions of the Plan shall inure to the benefit of, and be
binding upon, the Corporation and its successors or assigns, whether by
Corporate Transaction or otherwise, and the Participants and Optionees, the
legal representatives of their respective estates, their respective heirs or
legatees and their permitted assignees.


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