I've tried using the internal sound chip and I get the same results there, so not the soundcard itself.
When I run task manager, the only running apps is the audio programme IE biab or adobe audition.
I was using sonar about 1/2 hour ago. I had reason open and was recording a fiddle solo onto a track I'd made up.
It stopped dead twice without warning. Not a dropout, as it usually tells me. No, it just stopped.
The pc was behaving very oddly last night. IE.. the typed words appearing shortly AFTER I'd typed them. Copy & paste very sluggish as well.
I've ordered another 2gb memory stick which whould get here within a day or three.

I'll post an image of my running processes a bit later.