I've found this a persistent problem: whenever I'm playing a game, it'll run fine for a period of time, then all of a sudden, I'll have what I can only call audio buzzing (due to the audio of a same clip re-triggering itself so many times as the game tries to get back to its feet), the frames begin to jitter between the last one or two, and by the time the game crashes, Windows 7 has decided to allocate a random extra 40 percent of my memory to something that it doesn't even account for. Memory leak, anyone? I'm running Windows 7, 64 bit edition. This is a problem I've had for a long time; I sent my graphics card in, and they said it was fine, so I can only blame either a bug in the OS, or bad memory. Any ideas? So far, the only remedy I've found is to restart the computer. Or, for a temporary fix, open the task manager before the program crashes.