Is there any way to do simultaneous HDMI AND optical out of an Xbox 360? I have the HDMI plugged in, but if I plug in the proprietary cable that goes right above it that has the optical output adapter on it there is no video out from the HDMI. I need the optical out for the 5.1 to the receiver, but I need the HDMI for the 1080p from my TV. Any suggestions? I dont believe my receiver does HDMI pass-through to 1080p.