R15 Audio Issues

[hubcap1324]

Hey all. I am a new DVR user and got my R15 2 weeks ago. So far I am simply amazed at what it can do for me. Nothing to compare it to though. There is one minor issue I am seeing that is an annoyance. When watching a recorded event, it plays fine until I try to fast forward or rewind. If I do either of those, the audio will cut in and out for a few minutes then goes away. Anyone else? Is this worth calling to DTV and complaining about in your opinion? I can live with it, but part of me says I need to call and complain since this unit has had issues for most. Thanks so much for any input!