I have a Denon AVR-3200 that's about 5-6 years old and wanted to know if anyone had heard of the following problem. When listening to Dolby Digital material, the center channel either is gone, or comes in and out sounding very scratchy, as if there were a loose connection. I've confirmed by swapping cables and speakers that it's not a loose connection--in fact, I've recently swapped out the whole d*mn receiver with another one, as it was getting quite annoying. Note that this is ONLY with DD material. Example: I watched an episode of Buffy Season 2 on the system and had no problems with the signal from the center channel. Ejected that, put in something with a 5.1 soundtrack and boom, goodbye center channel. I took it to a service center and paid $85 for the privilege of (a) being without my receiver for three weeks and (b) having them tell me they couldn't find anything wrong with it. Anyhow, is this a known problem, is it worth fixing, or do you think it would be sellable in this condition? Thanks.