My current build is in my signature. It started while playing SC2 Beta, however with a couple fixes to the framerate I guess it fixed the problem, they said it may have been an "overheating" issue that was common with beta. However NOW I'm noticing its happening when I play Battlefield Bad Company 2. I'll be playing on multiplayer then all of the sudden the computer just dies randomly, the whole thing. When I boot it back up my desk top icons are all re-arranged differently and I have to fix them. Any ideas?