Me too. I tried my Over the Air signal, and it didn't have the dropouts. I tried changing from Dolby Digital to 5.1 surround artificial, and the drop outs were shorter, but still there. I then tried my tv speakers and the drop outs were there as well. After having dropouts on CBUT I then went to 800 to watch The National again and there were no dropouts, it is definitely only on Optic 100 which is CBUT. Sometimes my Optic Box has drop outs normally but if I hit 10 seconds back button the sound is there and there are no more dropouts, but with this present problem it doesn't go away.