Sorry it took me a week to get back to you, Bobby. Work was extremely hectic this past week. I tried the toslink swap today and found that the 811 is outputing digital audio just fine into Optical 1. So, it's doing it's job. Swapped things back, tweaked with some switches inside the front panel and *poof*, everything's working great now.
Yes, the dark SD video is obviously still a problem, but at least I've got digital audio from the 811 and my DVD player now!
Thanks for the tips.
Joe