I have been having an ongoing problem with my sound. Anytime I play anything in itunes or some sort of game, the audio pops and is distorted. An odd temporary fix was to restart my machine and log into the bios and not change anything. Then when it started up everything worked fine. I just recently bought a new sound card and it does the same thing with the same temporary fix. I went from a creative audigy 2 to a auzentech xplosion. Does anybody have any ideas. I can't figure this out.

Thanks.