Panasonic DMR-EH55S ... suddenly and sporadically there's no sound when I'm trying to play a recorded show from this DVR. I've switched out the red/yellow/white connection between the TV and the DVR which helped for a while but apparently wasn't the real problem. Although I get no sound when watching on the DVR, if I copy the recorded show to a dvr disk and play it on a different player attached to a different tv - no problem - sound is fine. The sound is in the recording, just not coming thru when I play it on the EH55S. Thanks for any ideas.