Hi Rob.

Mario has a good point - we've seen problems like this which were as a result of mobile phones. We always tell people to remove their phones from their pocket when playing electric guitar, especially single coil types.

We've also come across a problem exactly like yours which appeared to be some kind of conflict between ASIO drivers and VIA on-board audio. Disabling the VIA solved the problem. Why this should happen is not clear, but we've since heard of other identical cases. It only seems to happen with VIA, not Realtek.

ROG.