I have question for you, I couldn't find anything about this in the manual. If I change the channal (audio is coming thru the optical digital) the receiver is checking and most of the time doesn't lock on DOLBY DIGITAL even the signal is 5.1 but instead lock to Dolby VS Ref. So most of the time I need to take the remote and switch to Dolby Digital EX or just Dolby Digital. So is there any way I can just lock the stupid receiver to Dolby Digital and keep it? I really like the new receiver but it can be a little simpler. My old Technics SA-DA10 if didn't receive 5.1 digital will switch to ProLogic w/o I to do anything. Thanks in advance.