Exhibit 3.1(b)

                                                               STATE OF DELAWARE
                                                              SECRETARY OF STATE
                                                        DIVISION OF CORPORATIONS
                                                       FILED 09:00 AM 10/24/1990
                                                             902975123 - 2232700

                              CERTIFICATE OF AMENDMENT OF
                             CERTIFICATE OF INCORPORATION
                              OF THE MENTUS CORPORATION

                  THE MENTUS CORPORATION, a Corporation organized and existing
under the General Corporation Law of the State of Delaware, does hereby certify:

                  FIRST: That the Board of Directors of THE MENTUS CORPORATION,
by written consent executed in lieu of a meeting of all the directors, adopted
resolutions setting forth proposed amendments to the Certificate of
Incorporation of the Corporation, and referred the proposed amendments to the
stockholders of the corporation for their consideration and approval. The
resolutions setting forth the proposed amendments are as follows:

                           RESOLVED, that the Corporation shall amend Article 1
         of its certificate of Incorporation in its entirety to read as follower

                           "1.      Name.  The name of the Corporation
                           is the Mentus Group, Inc."; and

                           FURTHER RESOLVED, that the corporation shall amend
         Article 4 of its Certificate of Incorporation in its entirety to road
         as follows:

                           "4.      Authorized Capital.

                           Common Stock.  The Corporation shall
                           be authorized to issue One Million
                           (1,000,000) shares of common stock,
                           $.01 par value par share.

                           Preferred Stock.  The Corporation's
                           Board of  Directors shall be
                           authorized to provide for the





                           Issuance of up to Twenty Thousand (20,000) shares of
                           preferred stock by filing a certificate pursuant, to
                           the applicable law of the State of Delaware to fix
                           the designations, rights, powers and preferences of
                           such shares, and any qualifications, limitations or
                           restrictions thereof or pertaining thereto. The
                           authority of the Board shall include, but not be
                           limited to, the authority to determine the following
                           with respect to such preferred stock: (i) whether the
                           shares thereof shall have a par value, and if sol the
                           amount of such par value per share; (ii) the rote of
                           dividends, if any, whether such dividends shall be
                           cumulative, and, if so, the date on which such
                           cumulative dividends shall commence; (iii) the rights
                           thereof in the event of voluntary or involuntary
                           liquidation, dissolution or winding up of the
                           corporation (iv) the conversion privileges, if any,
                           and the terms and conditions thereof, including
                           provisions for adjustment of the conversion rate
                           based an such events as the Board of Directors may
                           determine; (v) the redemption feature, if any, and
                           the terms and conditions thereof, including the data
                           upon or after which such shares shall be redeemable,
                           and the amount per share payable in the event of
                           redemption, which amount may vary under different
                           conditions and at different redemption dates; (vi)
                           the voting rights, if any (in addition to such voting
                           rights as may be required by law), and the terms and
                           conditions of such voting rights; (vii) the exchange
                           privileges, if any, and the terms and conditions
                           thereof, including the terms of any 



                           security for which the Board of Directors may
                           determine the preferred stock to be exchangeable; and
                           (viii) any and all other designations, rights, powers
                           or preference thereof, or Qualifications,
                           restrictions or limitations pertaining thereto, that
                           lawfully may be provided for by resolution of the
                           Board of Directors and nay be included in a
                           certificate of the kind contemplated under section
                           151(g) of the Delaware General Corporation Law or any
                           Successor statute."

                  SECOND:  That the stockholders of the Corporation, by
written consent in lieu of a meeting, unanimously approved the

amendments.

                  THIRD:  That the Corporation duly adopted the amendments
in accordance with the provisions of Section 242 of the General

Corporation Law of the State of Delaware.

                  THE MENTUS CORPORATION has caused this Certificate to be
executed by Charles H. KRATSCH, its President, and by Thomas M.

Pugliese, its Secretary, as of September 11, 1990.

                                    THE MENTUS CORPORATION

                                    By:
                                       ----------------------------------
                                       Charles H. Kratech, President

ATTEST:

Thomas M. Pugliese, Secretary





State of                            )
                                    )ss.
County of                           )

                  The foregoing instrument was acknowledged before as this    
day of October, 1990, by Charles H. Kratech, the President of The Mentus
Corporation, a Delaware corporation, as the act and deed of the Corporation, and
he acknowledged that the facts stated in the foregoing certificate are true.

                                          -------------------------------------
                                                      Notary Public

My commission expires:

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State of                            )
                                    )ss.
County of                           )

                  The foregoing instrument was acknowledged before as this 
day of October, 1990, by Thomas M. Pugliese, the Secretary of The Mentus
Corporation, a Delaware corporation, as the act and deed of the Corporation, and
he acknowledged that the facts stated in the foregoing certificate are true.

                                          -------------------------------------
                                                      Notary Public

My commission expires:

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