<page> AMENDMENT NO. 1 TO AMENDED AND RESTATED CUSTOMER AGREEMENT WHEREAS,	MORGAN STANLEY CHARTER GRAHAM L.P., a Delaware limited partnership (the ?Customer?), and MORGAN STANLEY DW INC., a Delaware corporation (?Morgan Stanley DW?), have agreed to amend the Amended and Restated Customer Agreement, dated as of the 13th day of November 2000 (the ?Customer Agreement?), by and between the Customer and Morgan Stanley DW, to reduce the monthly brokerage fee payable to Morgan Stanley DW. WHEREAS, all provisions contained in the Customer Agreement remain in full force and effect and are modified only to the extent necessary to provide for the amendment set forth below. NOW, THEREFORE, the parties hereto hereby amend the Customer Agreement as follows: 1.	The monthly brokerage fee percentage referred to in the first paragraph of Section 5 of the Customer Agreement is hereby reduced to 1/12 of 6.25% (a 6.25% annual rate). 2.	The foregoing change shall take effect as of the 1st day of August 2003. <page> IN WITNESS WHEREOF, this Amendment to the Customer Agreement has been executed for and on behalf of the undersigned as of the 31st day of July 2003. MORGAN STANLEY CHARTER GRAHAM L.P. By:	Demeter Management Corporation, 	General Partner By:	/s/ Jeffrey A. Rothman 	Name: Jeffrey A. Rothman 	Title: President MORGAN STANLEY DW INC. By:	/s/ Jeffrey A. Rothman 	Name: Jeffrey A. Rothman 	Title: Executive Director Exhibit 10.05(a) NYLIB1 679809.1