I just hooked up my Denon 3803. I'm running composite video straight from the DVD player to the TV. I have an optical cable from the DVD player to the 3803 digital input #5. When I play a CD in the DVD player, sound comes out just fine. When I put a DVD in there, I get no sound, but of course the picture is displayed just fine. Any help anyone? Does anybody have a good link to a good Denon 3803 help site or thread? That manual is terrible. Thanks!