Document:

<PAGE>

[ * ] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY
BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.

                                                                   EXHIBIT 10.69

December 22, 2003

Amphora Discover Corp.
800 - 4 Capitola Drive
Durham, NC  27713
Attention: Dr. Martin Haslanger

RE:      The Modification Agreement, dated December 12, 2002, by and between
         Caliper Technologies Corp. ("Caliper") and Amphora Discovery Corp.
         ("Amphora") (the "Agreement")

Dear Dr. Haslanger:

Pursuant to recent discussions between Caliper and Amphora, this letter
agreement (the "Letter Agreement") sets forth certain terms and conditions which
shall amend and supercede the Agreement. Capitalized terms used but not defined
in this Letter Agreement shall have the meanings assigned to them in the
Agreement.

Amphora and Caliper hereby agree:

1.       Section 3 of the Agreement is hereby deleted in its entirety and
replaced by the following:

     "Pursuant to Section 2.2.2 of the LabChip Solutions Agreement, Amphora is
     obligated, among other things, to purchase an additional eleven Instrument
     Systems prior to December 31, 2002. Prior to the date of this Agreement,
     Amphora has purchased ten of such Instrument Systems. Upon the
     effectiveness of this Agreement pursuant to Section 8 below, Amphora's
     obligation to purchase the one remaining Instrument System shall be
     converted to an obligation to purchase, by no later than June 30, 2004,
     Products (as defined in the LabChip Solutions Agreement) from Caliper with
     an aggregate invoice price of no less than [ * ]. As part of its
     fulfillment of the foregoing obligation, Amphora shall purchase one "beta"
     version 300 Instrument System WITH [ * ]. The price for such instrument
     shall be [ * ]."

2.       Except as set forth in this Letter Agreement, the Agreement remains
unmodified and in full force and effect and is hereby ratified and affirmed;
provided however, that in the event of any conflict or inconsistency between any
term of this Letter Agreement and the Agreement, the terms of this Letter
Agreement shall control.

<PAGE>

Please indicate your agreement to the terms of this Letter Agreement by signing
where indicated below.

Sincerely,

CALIPER TECHNOLOGIES CORP.

By: /s/ Stephen Creager
    -------------------------------
    Name: Stephen Creager
    Title: Vice President & General Counsel

ACCEPTED AND AGREED
as of the date first set forth above:

AMPHORA DISCOVERY CORP.

By: /s/ Martin F. Haslanger
    -------------------------------------
     Name: Martin F. Haslanger, Ph.D.
     Title: President and CEO

[ * ] = CERTAIN CONFIDENTIAL INFORMATION CONTAINED IN THIS DOCUMENT, MARKED BY
BRACKETS, HAS BEEN OMITTED AND FILED SEPARATELY WITH THE SECURITIES AND EXCHANGE
COMMISSION PURSUANT TO RULE 24B-2 OF THE SECURITIES EXCHANGE ACT OF 1934, AS
AMENDED.<PAGE>

                                                                   EXHIBIT 10.39

                          CONCORD COMMUNICATIONS, INC.

                  MANAGEMENT AGREEMENT BETWEEN THE COMPANY AND
                              ELLEN (KOKOS) ROGERS

October 22, 2003

Ms. Ellen Rogers
195 Mattison Drive
Concord, MA 01742

      Re:  Transition and Severance Agreement and Release

Dear Ellen:

      This letter agreement summarizes the terms of your transition and
separation from employment with Concord Communications, Inc. (the "Company") and
the severance agreement and release between you and the Company (the
"Agreement"). The purpose of this Agreement is to establish an amicable
arrangement for ending your employment relationship, to release the Company from
any claims and to permit you to receive severance pay and related benefits. With
these understandings and in exchange for the promises by you and the Company as
set forth below, you and the Company agree as follows.

1.    EMPLOYMENT STATUS AND FINAL PAYMENTS:

      (a) Termination Date: Your termination from employment with the Company
will be effective as of December 31, 2003 (the "Termination Date"). As of the
Termination Date, your salary will cease, and any entitlement you have or might
have under a Company-provided benefit plan, program, contract or practice will
terminate, except as required by federal or state law, or as otherwise described
below.

      (b) Transition Period: From the date of this Agreement until the
Termination Date (the "Transition Period"), you shall continue to receive your
gross base salary, less applicable taxes, and benefits which you currently
receive, including vesting of stock options, except for any bonus plans for
which you have been or are eligible, which shall terminate immediately. Payment
of such salary during the Transition Period shall be paid in accordance with the
Company's normal payroll practices. You will not be eligible for any bonus
payments during the Transition Period or as a result of your employment during
the Transition Period. Notwithstanding the foregoing, you shall receive a
management bonus for Q3 2003 in keeping with bonus guidelines established by the
Compensation Committee of the Board of Directors.

2.    CONSIDERATION: In exchange for, and in consideration of, your full
execution of this Agreement and after the seven-day revocation period set forth
in Section 13 has expired without your having exercised your right of
revocation, the Company agrees as follows:
<PAGE>
      (a) Transition Pay: The Company agrees to retain you as an employee during
the Transition Period, which it is not otherwise required to do, during which
time you will continue to receive your current gross base salary less applicable
taxes and benefits, as set forth in Section 1 above and you will continue to
vest in stock options. As noted in Section 1, you will not be eligible for or
entitled to any bonus payments during the Transition Period or as a result of
your employment during the Transition Period.

      (b) One-time Lump Sum Payment: The Company agrees to pay you a one-time
lump sum payment of One Hundred Dollars ($100.00).

      (c) Payments: The payments set forth in this Section 2 shall be subject to
all applicable federal, state and/or local withholding and/or payroll taxes.

3.    STOCK OPTIONS: As set forth in the Concord Communications, Inc. 1997 Stock
Option and Incentive Plan and your Stock Option Agreements with the Company
("Stock Option Agreements"), your options to purchase stock in the Company will
cease vesting on the Termination Date. All of your rights and obligations to
stock options, including without limitation vesting, exercise and expiration,
are governed by the terms and conditions of the 1997 Stock Plan and the Stock
Option Agreements.

4.    RELEASE: In exchange for the amounts described in Section 2, which are in
addition to anything of value to which you are entitled to receive, and other
good and valuable consideration, the sufficiency of which is hereby
acknowledged, you and your representatives, agents, estate, heirs, successors
and assigns, absolutely and unconditionally hereby release, remise, discharge,
indemnify and hold harmless the Company Releasees (defined to include the
Company and/or any of its parents, subsidiaries or affiliates, predecessors,
successors or assigns, and its and their respective current and/or former
partners, directors, shareholders/stockholders, officers, employees, attorneys
and/or agents, all both individually and in their official capacities), from any
and all actions or causes of action, suits, claims, complaints, contracts,
liabilities, agreements, promises, torts, debts, damages, controversies,
judgments, rights and demands, whether existing or contingent, known or unknown,
suspected or unsuspected, which arise out of your employment with, change in
employment status with, and/or separation of employment from, the Company. This
release is intended by you to be all encompassing and to act as a full and total
release of any claims, whether specifically enumerated herein or not, that you
may have or have had against the Company Releasees arising from conduct
occurring up to and through the date of this Agreement, including, but not
limited to, any claims arising from any federal, state or local law, regulation
or constitution dealing with either employment, employment benefits or
employment discrimination such as those laws or regulations concerning
discrimination on the basis of race, color, creed, religion, age, sex, sex
harassment, sexual orientation, national origin, ancestry, genetic carrier
status, handicap or disability, veteran status, any military service or
application for military service, or any other category protected under federal
or state law; any contract, whether oral or written, express or implied,
including without limitation, any letter offering employment and any stock
option agreement(s) (except as
<PAGE>
otherwise provided herein); any tort; any claim for equity or other benefits; or
any other statutory and/or common law claim. You not only release and discharge
the Company Releasees from any and all claims as stated above that you could
make on your own behalf or on behalf of others, but also those claims that might
be made by any other person or organization on your behalf, and you specifically
waive any right to recover any damage awards as a member of any class in a case
in which any claim(s) against the Company Releasees are made involving any
matters.

5.    WAIVER OF RIGHTS AND CLAIMS UNDER THE AGE DISCRIMINATION IN EMPLOYMENT ACT
      OF 1967:

      Since you are 40 years of age or older, you are being informed that you
have or may have specific rights and/or claims under the Age Discrimination in
Employment Act of 1967 (ADEA) and you agree that:

      (a) in consideration for the amounts described in Section 2 of this
Agreement, which you are not otherwise entitled to receive, you specifically and
voluntarily waive such rights and/or claims under the ADEA you might have
against the Company Releasees to the extent such rights and/or claims arose
prior to the date this Agreement was executed;

      (b) you understand that rights or claims under the ADEA which may arise
after the date this Agreement is executed are not waived by you;

      (c) you are advised that you have at least 21 days within which to
consider the terms of this Agreement and to consult with or seek advice from an
attorney of your choice or any other person of your choosing prior to executing
this Agreement, and you acknowledge that you have not been subject to any undue
or improper influence interfering with the exercise of your free will in
deciding whether to consult with counsel;

      (d) you have carefully read and fully understand all of the provisions of
this Agreement, and you knowingly and voluntarily agree to all of the terms set
forth in this Agreement; and

      (e) in entering into this Agreement you are not relying on any
representation, promise or inducement made by the Company or its attorneys with
the exception of those promises described in this document.

6.    PERIOD FOR REVIEW AND CONSIDERATION OF AGREEMENT:

      (a) You acknowledge that you were informed and understand that you have
twenty-one (21) days to review this Agreement and consider its terms before
signing it.

      (b) The 21-day review period will not be affected or extended by any
revisions, whether material or immaterial, that might be made to this Agreement.

7.    ACCORD AND SATISFACTION:  The payments set forth in this Agreement
shall be complete and unconditional payment, settlement, accord and/or
satisfaction with respect to all obligations and liabilities of the Company
Releasees to you, including, without limitation, all claims for back wages,
salary, vacation pay, draws, incentive pay, bonuses, stock and stock options
(except as otherwise provided herein), commissions, severance pay,
<PAGE>
reimbursement of expenses, any and all other forms of compensation or benefits,
attorney's fees, or other costs or sums.

8.    CONTINUATION OF BASE SALARY: Provided (1) you have not initiated, filed,
served, or otherwise commenced an action, cause of action, suit, claim or
complaint ("Claim") of any kind against the Company or any employee, officer or
member of the Board of Directors of the Company and that no such Claim has been
initiated in any way on your behalf between the date of this Agreement and the
date on which you fully execute the Release Agreement in the form attached as
Exhibit A; (2) following the Termination Date, you fully execute the Release
Agreement in the form attached as Exhibit A; and (3) the 7-day revocation period
associated with the Release Agreement has expired without your exercising your
revocation right, the Company shall agree to continue your gross base salary
payments (at the same rate as during the Transition Period), less applicable
federal, state and/or local withholding and/or payroll taxes, for a six month
period commencing on December 31, 2003 and ending on ending on June 30, 2004.
These payments shall be paid in accordance with the Company's normal payroll
practices. In the event that you receive your gross base salary during this
period, you will be eligible for the Company's standard suite of benefits,
except that you will not be eligible for any bonus payments or stock option
grants or stock option vesting during this period of time. In the event that you
receive your gross base salary during this period, the date of the "qualifying
event" under the Consolidated Omnibus Budget Reconciliation Act of 1985
("COBRA") shall be June 30, 2003 and the Company will present you with
information on COBRA under separate cover. In the event that the conditions set
forth in (1) through (3) above have not been met, the Termination Date shall be
the date of such "qualifying event".

9.    COMPANY FILES, DOCUMENTS AND OTHER PROPERTY: You agree that within five
(5) days of your execution of this Agreement, you will return to the Company all
Company property and materials, including but not limited to, (if applicable)
personal computers, laptops, palm pilots and their equivalent, fax machines,
scanners, copiers, cellular phones, Company credit cards and telephone charge
cards, manuals, building keys and passes, courtesy parking passes, diskettes,
intangible information stored on diskettes, software programs and data compiled
with the use of those programs, software passwords or codes, tangible copies of
trade secrets and confidential information, sales forecasts, names and addresses
of Company customers and potential customers, customer lists, customer contacts,
sales information, sales forecasts, memoranda, sales brochures, business or
marketing plans, reports, projections, and any and all other information or
property previously or currently held or used by you that is or was related to
your employment with the Company ("Company Property"). You represent that you
have not and will not take by download or otherwise any Company Property. You
agree that in the event that you discover any Company Property in your
possession, whether in electronic form or otherwise, during the Transition
Period or after the Termination Date, you will immediately return such materials
to the Company.

      Notwithstanding the foregoing, the Company agrees that it will permit you
to retain your Company laptop, printer, and wireless equipment, provided you
agree to a $500 deduction from the payroll check next scheduled following your
execution of this Agreement. You agree that the items listed above are being
transferred to you "as is", with
<PAGE>
no representations or warranties, express or implied, being made to you by the
Company.

10.   NO LIABILITY OR WRONGDOING: Nothing in this Agreement, nor any of its
terms and provisions, nor any of the negotiations or proceedings connected with
it, constitutes, will be construed to constitute, will be offered in evidence
as, received in evidence as, and/or deemed to be evidence of, an admission of
liability or wrongdoing by any and/or all of the Company Releasees, and any such
liability or wrongdoing is hereby expressly denied by each of the Company
Releasees.

11.   FUTURE CONDUCT:

      (a) Nondisparagement: You agree not to make disparaging, critical or
otherwise detrimental comments to any person or entity concerning the Company,
its officers, directors, employees, or shareholders; the products, services or
programs provided or to be provided by the Company; the business affairs,
operation, management or the financial condition of the Company; or the
circumstances surrounding your employment and/or separation of employment from
the Company.

      (b) Confidentiality of this Agreement: You agree that you shall not
disclose, divulge or publish, directly or indirectly, any information regarding
the substance, terms or existence of this Agreement and/or any discussion or
negotiations relating to this Agreement, to any person or organization other
than your immediate family and accountants or attorneys when such disclosure is
necessary for the accountants or attorneys to render professional services.
Prior to any such disclosure that you may make, you shall secure from your
attorney or accountant their agreement to maintain the confidentiality of such
matters. Notwithstanding the foregoing, you (and any agent on your behalf) may
disclose to any and all persons, without limitation of any kind, the tax
treatment and tax structure of this transaction and all materials of any kind
that are provided to you, if any, relating to such tax treatment and tax
structure. For this purpose, "tax structure" is limited to any facts relevant to
the U.S. federal income tax treatment of the transaction and does not include
information relating to the identity of the parties.

      (c) Disclosures: Nothing herein shall prohibit or bar you from providing
truthful testimony in any legal proceeding or in communicating with any
governmental agency or representative or from making any truthful disclosure
required, authorized or permitted under law; provided, however, that in
providing such testimony or making such disclosures or communications, you will
use your best efforts to ensure that this Section is complied with to the
maximum extent possible. Notwithstanding the foregoing, nothing in this
Agreement shall bar or prohibit you from contacting, seeking assistance from or
participating in any proceeding before any federal or state administrative
agency to the extent permitted by applicable federal, state and/or local law.
However, you nevertheless will be prohibited to the fullest extent authorized by
law from obtaining monetary damages in any agency proceeding in which you do so
participate.

12.   REPRESENTATIONS AND GOVERNING LAW:
<PAGE>
      (a) This Agreement sets forth the complete and sole agreement between the
parties and supersedes any and all other agreements (including the Management
Change in Control Agreement, dated February 2, 2001) or understandings, whether
oral or written, except the Employee Noncompetition Agreement executed by you on
February 2, 2001, the Employee Confidentiality Agreement executed by you, and
the Stock Option Agreements between you and the Company, each of which shall
remain in full force and effect in accordance with their respective terms. This
Agreement may not be changed, amended, modified, altered or rescinded except
upon the express written consent of both the President of the Company and you.
You shall have no authority to bind the corporation after the date of this
Agreement.

      (b) If any provision of this Agreement, or part thereof, is held invalid,
void or voidable as against public policy or otherwise, the invalidity shall not
affect other provisions, or parts thereof, which may be given effect without the
invalid provision or part. To this extent, the provisions and parts thereof of
this Agreement are declared to be severable. Any waiver of any provision of this
Agreement shall not constitute a waiver of any other provision of this Agreement
unless expressly so indicated otherwise. The language of all parts of this
Agreement shall in all cases be construed according to its fair meaning and not
strictly for or against either of the parties.

      (c) This Agreement and any claims arising out of this Agreement (or any
other claims arising out of the relationship between the parties) shall be
governed by and construed in accordance with the laws of the Commonwealth of
Massachusetts and shall in all respects be interpreted, enforced and governed
under the internal and domestic laws of Massachusetts, without giving effect to
the principles of conflicts of laws of such state. Any claims or legal actions
by one party against the other shall be commenced and maintained in a state or
federal court located in Massachusetts, and you hereby submit to the
jurisdiction and venue of any such court.

      (d) You represent that you have not been subject to any retaliation or any
other form of adverse action by the Company Releasees for any action taken by
you as an employee of the Company or resulting from your exercise of or attempt
to exercise any statutory rights recognized under federal, state or local law.

      (e) You may not assign any of your rights or delegate any of your duties
under this Agreement. The rights and benefits of this Agreement shall inure to
the benefit of the Company's successors and assigns.

13.   EFFECTIVE DATE: After signing this letter, you may revoke this Agreement
for a period of seven (7) days following said execution. The Agreement shall not
become effective or enforceable and no payments will be made pursuant to this
Agreement until this revocation period has expired ("Effective Date").
<PAGE>
      If this letter correctly states the agreement and understanding we have
reached, please indicate your acceptance by countersigning the enclosed copy and
returning it to me.

                              Very truly yours,

                              CONCORD COMMUNICATIONS, INC.

                              By:   /s/ Melissa H. Cruz
                                 ---------------------------------------
                                 Melissa H. Cruz, Executive Vice President,
                                 Business Services and Chief Financial
                                 Officer

I REPRESENT THAT I HAVE READ THE FOREGOING AGREEMENT, THAT I FULLY UNDERSTAND
THE TERMS AND CONDITIONS OF SUCH AGREEMENT AND THAT I AM KNOWINGLY AND
VOLUNTARILY EXECUTING THE SAME. IN ENTERING INTO THIS AGREEMENT, I DO NOT RELY
ON ANY REPRESENTATION, PROMISE OR INDUCEMENT MADE BY THE COMPANY OR ITS
REPRESENTATIVES WITH THE EXCEPTION OF THE CONSIDERATION DESCRIBED IN THIS
DOCUMENT.

Accepted and Agreed to:

/s/ Ellen Rogers
-----------------------------------
                                  ELLEN ROGERS

Date:    10/28/03
      -----------------------------
<PAGE>
                  IF YOU DO NOT WISH TO USE THE 21-DAY PERIOD,
                 PLEASE CAREFULLY REVIEW AND SIGN THIS DOCUMENT

      I, Ellen Rogers, acknowledge that I was informed and understand that I
have 21 days within which to consider the attached Transition and Severance
Agreement and Release, have been advised of my right to consult with an attorney
regarding such Agreement and have considered carefully every provision of the
Agreement, and that after having engaged in those actions, I prefer to and have
requested that I enter into the Agreement prior to the expiration of the 21 day
period.

Dated:      10/28/03                      /s/ Ellen Rogers
      ------------------                  ------------------------
                                          ELLEN ROGERS

Dated:
      ------------------                  ------------------------------
                                          Witness:
<PAGE>
                                    EXHIBIT A
                                Release Agreement

      It is hereby agreed in this release agreement by and between Concord
Communications, Inc. and Ellen Rogers, for good and valuable consideration more
fully described below, that:

1.    CONSIDERATION: in consideration for, and upon your execution of, this
agreement, and expiration of the revocation period set forth in Section 9
herein, provided you have not exercised your right of revocation, you will be
entitled to continuation of your gross base salary, less applicable federal,
state and/or local withholding and/or payroll taxes, for a six month period
ending on June 30, 2004. These payments shall be paid in accordance with the
Company's normal payroll practices.

2.    RELEASE: In exchange for the amount described in Section 1 above, which is
in addition to anything of value to which you are entitled to receive, and other
good and valuable consideration, the sufficiency of which is hereby
acknowledged, you and your representatives, agents, estate, heirs, successors
and assigns, absolutely and unconditionally hereby release, remise, discharge,
indemnify and hold harmless the Company Releasees (defined to include the
Company and/or any of its parents, subsidiaries or affiliates, predecessors,
successors or assigns, and its and their respective current and/or former
partners, directors, shareholders/stockholders, officers, employees, attorneys
and/or agents, all both individually and in their official capacities), from any
and all actions or causes of action, suits, claims, complaints, contracts,
liabilities, agreements, promises, torts, debts, damages, controversies,
judgments, rights and demands, whether existing or contingent, known or unknown,
suspected or unsuspected, which arise out of your employment with, change in
employment status with, and/or separation of employment from, the Company. This
release is intended by you to be all encompassing and to act as a full and total
release of any claims, whether specifically enumerated herein or not, that you
may have or have had against the Company Releasees arising from conduct
occurring up to and through the date of this Agreement, including, but not
limited to, any claims arising from any federal, state or local law, regulation
or constitution dealing with either employment, employment benefits or
employment discrimination such as those laws or regulations concerning
discrimination on the basis of race, color, creed, religion, age, sex, sex
harassment, sexual orientation, national origin, ancestry, genetic carrier
status, handicap or disability, veteran status, any military service or
application for military service, or any other category protected under federal
or state law; any contract, whether oral or written, express or implied,
including without limitation, any letter offering employment and any stock
option agreement(s) (except as otherwise provided herein); any tort; any claim
for equity or other benefits; or any other statutory and/or common law claim.
You not only release and discharge the Company Releasees from any and all claims
as stated above that you could make on your own behalf or on behalf of others,
but also those claims that might be made by any other person or organization on
your behalf, and you specifically waive any right to recover any damage awards
as a member of any class in a case in which any claim(s) against the Company
Releasees are made involving any matters.

3.    WAIVER OF RIGHTS AND CLAIMS UNDER THE AGE DISCRIMINATION IN EMPLOYMENT ACT
      OF 1967:
<PAGE>
      Since you are 40 years of age or older, you are being informed that you
have or may have specific rights and/or claims under the Age Discrimination in
Employment Act of 1967 (ADEA) and you agree that:

      (a) in consideration for the amounts described in Section 1 of this
Agreement, which you are not otherwise entitled to receive, you specifically and
voluntarily waive such rights and/or claims under the ADEA you might have
against the Company Releasees to the extent such rights and/or claims arose
prior to the date this Agreement was executed;

      (b) you understand that rights or claims under the ADEA which may arise
after the date this Agreement is executed are not waived by you;

      (c) you are advised that you have at least 21 days within which to
consider the terms of this Agreement and to consult with or seek advice from an
attorney of your choice or any other person of your choosing prior to executing
this Agreement, and you acknowledge that you have not been subject to any undue
or improper influence interfering with the exercise of your free will in
deciding whether to consult with counsel;

      (d) you have carefully read and fully understand all of the provisions of
this Agreement, and you knowingly and voluntarily agree to all of the terms set
forth in this Agreement; and

      (e) in entering into this Agreement you are not relying on any
representation, promise or inducement made by the Company or its attorneys with
the exception of those promises described in this document.

4.    PERIOD FOR REVIEW AND CONSIDERATION OF AGREEMENT:

      (a) You acknowledge that you were informed and understand that you have
twenty-one (21) days to review this Agreement and consider its terms before
signing it.

      (b) The 21-day review period will not be affected or extended by any
revisions, whether material or immaterial, that might be made to this Agreement.

5.    ACCORD AND SATISFACTION: The payments set forth herein shall be complete
and unconditional payment, settlement, accord and/or satisfaction with respect
to all obligations and liabilities of the Company Releasees to you, including,
without limitation, all claims for back wages, salary, vacation pay, draws,
incentive pay, bonuses, stock and stock options, commissions, severance pay,
reimbursement of expenses, any and all other forms of compensation or benefits,
attorney's fees, or other costs or sums.

6.    NO LIABILITY OR WRONGDOING: Nothing in this Agreement, nor any of its
terms and provisions, nor any of the negotiations or proceedings connected with
it, constitutes, will be construed to constitute, will be offered in evidence
as, received in evidence as, and/or deemed to be evidence of, an admission of
liability or wrongdoing by any and/or all of the Company Releasees, and any such
liability or wrongdoing is hereby expressly denied by each of the Company
Releasees.

7.    FUTURE CONDUCT:
<PAGE>
      (a) Nondisparagement: You agree not to make disparaging, critical or
otherwise detrimental comments to any person or entity concerning the Company,
its officers, directors, employees, or shareholders; the products, services or
programs provided or to be provided by the Company; the business affairs,
operation, management or the financial condition of the Company; or the
circumstances surrounding your employment and/or separation of employment from
the Company.

      (b) Confidentiality of this Agreement: You agree that you shall not
disclose, divulge or publish, directly or indirectly, any information regarding
the substance, terms or existence of this Agreement and/or any discussion or
negotiations relating to this Agreement, to any person or organization other
than your immediate family and accountants or attorneys when such disclosure is
necessary for the accountants or attorneys to render professional services.
Prior to any such disclosure that you may make, you shall secure from your
attorney or accountant their agreement to maintain the confidentiality of such
matters. Notwithstanding the foregoing, you (and any agent on your behalf) may
disclose to any and all persons, without limitation of any kind, the tax
treatment and tax structure of this transaction and all materials of any kind
that are provided to you, if any, relating to such tax treatment and tax
structure. For this purpose, "tax structure" is limited to any facts relevant to
the U.S. federal income tax treatment of the transaction and does not include
information relating to the identity of the parties.

      (c) Disclosures: Nothing herein shall prohibit or bar you from providing
truthful testimony in any legal proceeding or in communicating with any
governmental agency or representative or from making any truthful disclosure
required, authorized or permitted under law; provided, however, that in
providing such testimony or making such disclosures or communications, you will
use your best efforts to ensure that this Section is complied with to the
maximum extent possible. Notwithstanding the foregoing, nothing in this
Agreement shall bar or prohibit you from contacting, seeking assistance from or
participating in any proceeding before any federal or state administrative
agency to the extent permitted by applicable federal, state and/or local law.
However, you nevertheless will be prohibited to the fullest extent authorized by
law from obtaining monetary damages in any agency proceeding in which you do so
participate.

8.    REPRESENTATIONS AND GOVERNING LAW:

      (a) This Agreement sets forth the complete and sole agreement between the
parties and supersedes any and all other agreements or understandings, whether
oral or written, except the Transition and Severance Agreement and Release, the
Employee Noncompetition Agreement executed by you on February 2, 2001, the
Employee Confidentiality Agreement executed by you, and the Stock Option
Agreements between you and the Company, each of which shall remain in full force
and effect in accordance with their respective terms. This Agreement may not be
changed, amended, modified, altered or rescinded except upon the express written
consent of both the President of the Company and you.

      (b) If any provision of this Agreement, or part thereof, is held invalid,
void or voidable as against public policy or otherwise, the invalidity shall not
affect other provisions,
<PAGE>
or parts thereof, which may be given effect without the invalid provision or
part. To this extent, the provisions and parts thereof of this Agreement are
declared to be severable. Any waiver of any provision of this Agreement shall
not constitute a waiver of any other provision of this Agreement unless
expressly so indicated otherwise. The language of all parts of this Agreement
shall in all cases be construed according to its fair meaning and not strictly
for or against either of the parties.

      (c) This Agreement and any claims arising out of this Agreement (or any
other claims arising out of the relationship between the parties) shall be
governed by and construed in accordance with the laws of the Commonwealth of
Massachusetts and shall in all respects be interpreted, enforced and governed
under the internal and domestic laws of Massachusetts, without giving effect to
the principles of conflicts of laws of such state. Any claims or legal actions
by one party against the other shall be commenced and maintained in a state or
federal court located in Massachusetts, and you hereby submit to the
jurisdiction and venue of any such court.

      (d) You represent that you have not been subject to any retaliation or any
other form of adverse action by the Company Releasees for any action taken by
you as an employee of the Company or resulting from your exercise of or attempt
to exercise any statutory rights recognized under federal, state or local law.

      (e) You may not assign any of your rights or delegate any of your duties
under this Agreement. The rights and benefits of this Agreement shall inure to
the benefit of the Company's successors and assigns.

9.    EFFECTIVE DATE: After signing this letter, you may revoke this Agreement
for a period of seven (7) days following said execution. The Agreement shall not
become effective or enforceable and no payments will be made pursuant to this
Agreement until this revocation period has expired ("Effective Date").

I REPRESENT THAT I HAVE READ THE FOREGOING AGREEMENT, THAT I FULLY UNDERSTAND
THE TERMS AND CONDITIONS OF SUCH AGREEMENT AND THAT I AM KNOWINGLY AND
VOLUNTARILY EXECUTING THE SAME. IN ENTERING INTO THIS AGREEMENT, I DO NOT RELY
ON ANY REPRESENTATION, PROMISE OR INDUCEMENT MADE BY THE COMPANY OR ITS
REPRESENTATIVES WITH THE EXCEPTION OF THE CONSIDERATION DESCRIBED IN THIS
DOCUMENT.

Accepted and Agreed to:

/s/ Ellen Rogers
--------------------------
ELLEN ROGERS

Date:      1/9/04
      --------------------
<PAGE>
                  IF YOU DO NOT WISH TO USE THE 21-DAY PERIOD,
                 PLEASE CAREFULLY REVIEW AND SIGN THIS DOCUMENT

      I, Ellen Rogers, acknowledge that I was informed and understand that I
have 21 days within which to consider the attached Release Agreement, have been
advised of my right to consult with an attorney regarding such Agreement and
have considered carefully every provision of the Agreement, and that after
having engaged in those actions, I prefer to and have requested that I enter
into the Agreement prior to the expiration of the 21 day period.

Dated:  1/9/04                            /s/ Ellen Rogers
      ------------------                  ------------------------------------
                                                     ELLEN ROGERS

Dated:
      ------------------          --------------------------------
                                  Witness:

Source: [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00062-of-00352.parquet"}, [{"source": "alea-institute/alea-institute/kl3m-data-edgar-agreements/train-00062-of-00352.parquet"}]]