So... I've been having a problem with my PC for a couple of weeks. It's the kind of problem you can live with, until you have a craving for video and audio. Anyway... My system's video and audio will suddenly speed up 2X, and all of my USB ports won't function. The PC will turn on regularly, but then all of a sudden, the above mentioned will happen and it will stay that way until I restart the computer. Any suggestions? I'm running Windows XP.