Hi I ran the game with my CPU at 2.55 and using mem divider 333 1T. It was lagging, bad enough to be worse than unplayable. The game was fine at 10X7 Med with rare stuttering, but it was really really bad at higher settings. This is worse than my 6600GT. CCC - default settings. It was the demo version. I am facing lagging problems with MW demo as well, though it is no so severe. Other games also may have a slight problem but not all games have the problem. I am using a generic cabinet, had opened the case while playing. I am using 1 X 80mm exhaust fan, 1 X 80mm fan close to the hdd, tt bh, 2 fans with cabinet. Please help.