My sound test on my Samsung 841 isn't working. Everything plays right and works. I got it to produce sound out of the L and R front and then nothing. The THX test on the Star Wars DVD works but the players test does not. Just wondering if anyone knew what would cause this? Really also making sure that this is not a short in the player or anything wrong with the receiver. Obviously the speakers are hooked up or the THX test wouldn't work. thanks. Any help would be appreciated. Thanks...