My computer stalls at random. It doesn't stall for very long and it doesn't impair functionality too much, per se, but it becomes annoying and it's definitely unpleasant to hear iTunes repeat the same two-second strain of music twenty times in a row until I shut down my speakers and wait for it to end. Now, I've just recently reformatted my machine and reinstalled all my necessary documents and applications after some recent hardware trouble. The first thing I ought to mention, I think, is that my HDD is dysfunctional: it has failed the Seagate Diagnostic Utility every time I have run it, and I intend to investigate and see if replacing the hard drive fixes the issue, but in the interstice I'd like to query you, my fellow TechSpotters, and see if you could maybe assist and tell me if the problem does not, in fact, have to do with my hard drive. There are other things you should know: I'm running a custom welcome screen, for starters. I'm on SP2. My processor is overclocked by .2 GHz (core clock, no overvoltaging). Any ideas?