Nobody for sure messed with the DVD player, you have to get into menus to do anything on that end. The reciever is recieving a dolby digital signal (the dolby digital light is on, which is only on when its getting that signal) but it wont let it output in DD. It wants to have a DSP on or have it be in stereo, mono, PLII ect. Ive had the reciver for 5 years now, I dont think I need to learn how to configure it. Its happend before, something gets turned on that overrides the DD signal and I just cant rember how to get it to default back to how I had it set.
Sean