I have a 1 year old 65" plasma and a new denon 2113ci. it was working great for a month. now there is no video coming out of the denon. Video will work from tv to directv and tv to xbox 360 but neither through the denon. i took the denon up to best buy. they hooked it up and the fing thing worked. they said it is probably the hdmi cables. So i bought new HDMI cables, $400.00 worth, and came home. hooked it up and it still doesn't work. Audio works, no video.