Steve: Try doing a reset on the Book Port with 2 plus b. You might need to do a Reset without a flash card installed. Then, put one of your cards in (preferably the one that came with BP), but don't use the 4 gig card. Then, try the reformat command which is the 4 corner keys (1 plus 3 plus d plus f). Pamela Rader, TECHNICAL SUPPORT American Printing House For The Blind 1839 Frankfort Ave. Louisville, KY 40206 PHONE: 1-800-223-1839, Ext. 307 >>> scullen7@xxxxxxxxxxxxx 12/08/05 11:21AM >>> Hi, I have three flash cards, and I get the error message on all three. I bought a 4 gig not knowing it wasn't supported I have a 512 megabyt and the one that came with my bookport I believe its a 64 megabyte. Any help would be appreciated. Sincerely, Steve Cullen