Edirol US-25 USB audio MIDI interface

Breaking up or clipping

I know this is a new interface, but maybe someone has some experience with it. All my recordings are breaking up. I’ve tried both ASIO and WDM drivers. I’ve tried mic and guitar input. It all comes out the same breaking up. I should have enough horsepower 2.8 gig pentium 4 500 meg of ram and an 80 gig hard drive. Any suggestions. Thanks Lenny