OK, My speakers have the volume notch at 0. There are no music playing on my comp (windows media, no cd in the cd-rom drive, launch is not on) And yet, I hear MUSIC.

thats right, I hear music coming from my speakers that have the volume down to 0. If I turn it up, it stops. If I plug in headphones, I can't hear it. I tried disconnecting from the net, but it still plays.

What is causing this?