I've trouble-shot this in every way possible. Put other movies and and get surround channels fine, but FORREST GUMP leaves by rear speakers silent, even though my system shows that 5.1 is activated. And I know that surround channels are not always in use, but during the combat sequences, I put my ears literally up to the speakers and get nothing. It doesn't seem likely that just one copy would be like this - I assume they were replicated from the same source. Anyone else?