well here is the problem..i have a PNY 8800gts 320 AND I CAN PUT EVERYTHING ON HIGH..but it wont let me set my Anti-Aliasing x2x4x8x16 ..i set it then hit apply and it goes back to off. well here is my system specs if it helps MoBo ASUS M2N-SLi-Deluxe Amd 5600+ 8800 GTS 320.Any help would be great..thanks