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                                                                  EXHIBIT 10.124

                                                              COPI COLORADO LOAN

                               FOURTH AMENDMENT TO
                          CREDIT AND SECURITY AGREEMENT

         THIS FOURTH AMENDMENT TO CREDIT AND SECURITY AGREEMENT (this
"Amendment") is made and entered into effective as of February 15, 2001 between
CRESCENT REAL ESTATE EQUITIES LIMITED PARTNERSHIP, a Delaware limited
partnership (the "Lender") and CRESCENT OPERATING, INC., a Delaware corporation
(the "Borrower").

                                    RECITALS

         A. The parties executed that certain Credit and Security Agreement
dated as of September 21, 1998, as amended by that certain First Amendment to
Credit and Security Agreement dated as of March 11, 1999 (collectively, the
"Original Agreement").

         B. The parties executed that Second Amendment to Credit and Security
Agreement dated as of February 1, 2000, to defer the interest payments that
would otherwise be due on the first Business Day of February, May, August and
November 2000 until the first Business Day of February 2001; and the parties
executed that Third Amendment to Credit and Security Agreement dated as of
January 31, 2001, to defer until February 15, 2001, the interest payments that
would otherwise be due on the first Business Day of February 2001 and on
February 1, 2001. The Original Agreement, as amended by that Second Amendment
and by that Third Amendment, is called the "Amended Original Agreement." All
capitalized terms not otherwise defined in this Amendment will have the same
meaning as described in the Amended Original Agreement.

         C. The parties wish to further defer the aforementioned payments until
March 5, 2001.

         In consideration of the mutual covenants set forth herein, and for
other good and valuable consideration, the receipt and sufficiency of which are
hereby acknowledged, the parties hereto hereby agree as follows:

         1. Section 2.3. Section 2.3(c) of the Amended Original Agreement is
hereby amended by the addition of the following sentence to the end thereof:

         The Borrower and the Lender hereby agree that the interest that would
         otherwise be due on the first Business Day of February, May, August and
         November 2000 and of February 1, 2001 shall be deferred until, and
         shall be due on, March 5, 2001.

         2. Remainder of Amended Original Agreement. Except as amended hereby,
the Amended Original Agreement shall continue in full force and effect in the
form that was effective immediately before the execution of this Amendment.

         3. Counterparts. This Amendment may be executed in any number of
counterparts, all of which taken together shall constituted one and the same
document.



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                                                              COPI COLORADO LOAN

         4. Binding Effect. This Amendment shall be binding upon and inure to
the benefit of the respective successors and assigns of the parties hereto.

         5. Governing Law and Severability. This Amendment shall be governed by
and construed in accordance with the laws of the State of Texas. Whenever
possible, each provision hereof shall be interpreted in such manner as to be
effective and valid under applicable law.

         IN WITNESS WHEREOF, the parties below have executed this Amendment
effective as of the date first written above.


                                        CRESCENT OPERATING, INC.


                                        By:
                                            ------------------------------------
                                            Name:
                                                  ------------------------------
                                            Title:
                                                   -----------------------------



                                        CRESCENT REAL ESTATE EQUITIES
                                        LIMITED PARTNERSHIP

                                        By: Crescent Real Estate Equities, Ltd.,
                                            its general partner


                                               By:
                                                   -----------------------------
                                                   Name:
                                                         -----------------------
                                                   Title:
                                                          ----------------------


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