I have been having audio problems with my main setup. The DD feed from my HR21-700 is not always coming through on HD content labeled DD. I am trying to pinpoint the problem. Is it the feed or the Box, Can someone confirm they are receiving DD 5.1 from tonight's episode of Entourage. My HR20-700 Is feeding my Marantz 8500 Through coaxial digital. The Marantz is only receiving 2 channel audio with Entourage on 501HD. I have tried optical out but having the same problem. Has anyone else experienced these problems?