I just bought the $500.00 GeForce fx 5900 Ultra 256 MB card, and ran 3dmark2001 with no visble performance increase !!!!! I scored 12400 pts. with my GeForce 4 Ti4600, and just did it again with the new card .. Any ideas..? I checked the BIOS, reinstalled DirectX9.0b reinstalled 44.76 Detonator drivers, and nothing... What am I overlooking ??