Alright here is my quick and dirty setup that I believe it starting to fail.
Denon AVR-2400 w/seperate AVD-2000 dolby digital processor, hooked up to a small AVS 5.1 Cerwin Vega setup (I live in a small apartment)
Anyway, I noticed when I threw in the simpsons DVD today that the volume of my center channel was virtually zero. So I switched it over to 5ch stereo, and volume was back to normal, but of course not pro-logic. Then I decided to switch to Dolby Digital, same thing, no volume from the center. I crank it up, I can hear it, but very faint, but then I notice other sounds from the center but no voices.
Figure hey, maybe it's my DVD player, so I try the xbox, and same thing, from both the optical and RCA outputs. Now once again, flip to normal stereo mode and 5ch, bingo, sounds great.
I also tried games, and other DVD's, same problem.
Any ideas? I'm hoping I don't have to run out and get a new amp, but for some reason, it seems as if I elimnated the sources, and narrowed it down to the receiver.
Thanks everyone, and I hope someone has some good news for me