i was playing FEAR today and i notices after playing for about 2 hours or less, that it started gliching a little (slowdown) and then the entire level that i was playing in went black except for my HUD and the current weapon i was holding. it was like i was playing in the dark or something. i reset the game, and when it loaded again it was the same way as when i left it, with some slowdown again and it was all black. i tried to launch a different game (doom3) and it played fine. so then i tried FEAR again and it was fine for about another 30-40 min, then i got slowdown and gliches again. so, i am running a amd athlon 64 3000+ cpu, asus k8n MB, corsair xms 512x2, and a radeon 9700 pro graphics card. what could be the cause of this. overheating with the graphics card i though, because i know i only run about 38-40C on the cpu during heavy load. any help would be appreciated.