Hi! I have a good gamer PC. I bought it about 8 month ago. Everything worked fien, games were running on max settings but lately games have started lagging. When I start playing a game (e.g. Medal of Honor), at the beginning, it doesn't lag. But after a few minutes it starts lagging. It's not a continuous lagg, just it lags a bit in every 1-2 seconds. I saw that the System proccess (and its dxgmms1.sys) was using the CPU in 2-3%. My rig: Phenom II x4 920 (not ocd) Sapphire HD 5750 4 gb DDR2 RAM Thanks in advance.