Sat down to watch a DVD last night and found that I could get no DD sound. Tried changing cables, changing the input to the amp from Coax1 to Coax2, tried playing the DVD on my Sony recorder rather than the S97 but no way could I get DD sound. In the end, I tried resetting the processor in the amp and everything worked fine, although obviously I had to reconfigure the amp settings. Just wondered if anyone else has encountered this? Thanks for reading. Cheers, Martin.