I have done a search in this forum and haven't found this exact problem mentioned so here goes. I have had my 811 for a few months and it has worked pretty well for the most part. Last week though, I lost sound from some of my channels, most notably the HD channels and some of the pay chennels (showtime etc.) I have my denon 3803 hooked up via the optical output. Like I said, everything worked great until last week. I can get audio if I connect via RCA, but obviously no dolby digital. Is there a fix for this or am I stuck without DD? I have called customer support but they were no help (surprise). Thanks