USB audio problem.

Hey.
My Virus Ti Snow has been working fine for bout a month already. But just yesterday, when I play anything off my computer, like songs/internet etc , the Virus plays the sound for less than a min, then it makes this loud crackling sound and then nothing comes out of the speakers. When I restart the Virus, it works again for less than a minute before stopping again. I've tried updating the OS and replugging the USB cables but nothing has worked. Any ideas? Is it anything to do with some paging file size or something?

I think its alright now. Figured out that it was a prob with Sony Vegas. Prob solved when i closed it.