Hey, so I've been putting together a media station out in the living room. I'm running Vista with an Audigy 2 ZS. The Audigy is feeding a Harman Kardon AVR635 through digital coax. At first I didn't think it was working. I have to turn the receiver all the way up to hear tinny amounts of anything. The levels in Vista are set to 100% and everything is still way too low. Anything I might have missed?