Hello, After a friend and I watched a dvd on my PS3 I switched it over to the cable box and turned down the volume with my harmony touch remote and while I was turning it down the sound all of a sudden cut out. I have a Denon AVR- 1613 that is hooked up to a io gear matrix wireless transmitter. The transmitter is hooked up to my cable box in HDMI 1 and my PS3 which is HDMI2, that is transmitted to my Epson 5030 projector. Both the PS3 and Cable box go though the CBL/SAT on the Denon audio receiver. Now when I go to HDMI 1 I get video but no sound from the cable box. When I got to HDMI 2 I get both sound and video from the PS3. I have made sure the box is not turned down or muted and I have also reset the cable box as well as the Denon audio box and blew into the phones jack of the audio receiver. Any help on how I can get the audio back on for my cable box would be greatly appropriated!