My Xbox has been giving out stratchy distortion out of my left surround channel. Its REALLY annoying. Ive been having this problem for a week or two now. Sometimes, the audio will dropout completly. I would fix it by siwtching the imput on the receiver. VERY ANNOYING! That seemed to only happen when I rented GUNVALKYRIE. I can fix teh problem by unplugging then re-pluging in the fiber opitc cable. The distortion just keeps coming back. I havent been playing any ohter games other than PGR recently, so Im not too sure if it does it on my other games. (Halo, DOA3, Bloodwake) I remember hearing it in Halo too. UGH!!! Do I have defective Xbox? AV pack? My receiver? What the hell, this sucks. I luv my Xbox sooo much. Ps. Im sure that it is not from the first wave of Xboxes with the defective audio board. If it is, how can I check it to find out if it was from the first wave and how do I fix it?