I've had this problem for a while now, months infact. It doesn't seem to be a big problem, it's just strange.
I have to be online for it to happen, but which programs I run, doesn't seem to matter, and I've checked all software settings for the sound file... nothing.
Basically every once in a random time, a guitar blasts from the speakers only to go away again and maybe not sound again for minutes or sometimes hours...
It's driving me mad now.
Tried Spybot, Ad-aware SE, Norton Anti-virus and Antivir - all return nothing.
Anybody any ideas?
Peace be with you!