I just hooked my new JBLs (E50 mains, EC25, E10s) to my NAD T762 and sat down to do some listening but am having some issues with the volume in 2 channel mode vs. 5.0. 2-channel stereo sounds like it always did, but when I switch to a DVD the -20 db that is adequate for music is barely a whisper on movie soundtracks. When I raised the volume, the NAD shut off at +5 db. I tried the sound test (the tones) and noticed the center channel was lower than the rest; when I started to raise the level of the center the system shut itself off again. Finally, I unplugged it for a while thinking I did something to annoy the receiver while I was hooking up the speakers. Since reconnecting to the outlet, I haven't raised the volume much to see if the receiver will still shut itself off but the volume situation is the same. The NAD manual wasn't terribly helpful with this issue and I'm a relative newbie with regard to home theater so it may be something obvious that I'm missing. I fiddled with audio settings through the DVD player but that didn't help either. Any ideas??