I’ve noticed that one of my two new 4320s has started giving me a recurring problem with video playback. When I watch a program recorded on the “bad†unit from the “good†unit, I get an intermittent blue “no video present†screen. Last night I was watching a “live†show on the “bad†unit, and the video was very jerky, with an occasional blue “no video present†screen. I rebooted the “bad†unit, but did not get to watch it long enough after the reboot to tell if it helped. Any suggestions?