I've had 2 issues. This is the MN:6005 and it says dNorm when the audio would come back on. Very brief drops lasting less than a second and about 30 sec to 1 minute or more apart. Mediacom cable box was doing this on only one high def channel and the box got zapped, replaced, and the problem was gone. A similar problem returns however and seemed to be intermittant and on many channels. Resetting the cable box sometimes seemed to help. I thought it was the cable box again. Turns out I can fix this everytime it does it by turning everything off. Then turning the receiver on first, then cable box, then tv. I have everything running through the receiver with only one HDMI output to the tv. Our blue-ray player (PS3) never exibited this problem. Our remote turns the cable box on first, then receiver, then tv (wrong order). Not sure why it occasionally acts up, but it was frustrating for sure. I hope this will help someone else with the same type of problem. Also I've found that when getting poor cable signal, audio halting, pixelating, freezing screen, etc that it is usually on the channel with new programs (everyone watching at once). The cable company is able to boost the signal for that channel and make it work. I call immediately now whenever this begins to be an issue and they fix it right then over the phone. Happy viewing all!