I'm having some audio troubles and I can't determine if it's my replay 4500 series or my Yamaha Receiver. Maybe one of you can shed some light. Here is the trouble: While watching a recorded show, the audio will cut out for a split second. If I use "instant replay" and play back the portion that was skipped in audio, it now plays normally. Sometimes I'll go 2-3 evenings with no troubles. Other times, this will occur 3-7 times per recorded show. Has anyone heard of this on a replay? Or on a receiver? Thanks.