[Capt. Insane]

For some reason, when I'm playing a game the computer hangs every once in a while. The whole game freezes, my music stops, and not even control-alt-delete works. Then after a few moments it goes back to normal for a while. Someone suggested it's because the processor is switching from one core to the next, but I set the program's affinity to use only the 0 processor and it still does it. Any ideas?