I am definitely having trouble with a comcast HD/DVR box. Often times when I go from a non-HD channel to an HD channel, my 1070 does not passthru the HD signal properly, it on passes 480 lines. I know this because my Sony 50" SXRD shows the resolution it is recieving. This causes the "black lines" at the top and bottom of the screen. I have to turn the 1070 off, then back on to get the 1080 resolution.

Now problem #2. I experienced the above problem last night, so I turned the 1070 off then back on and now NO AUDIO at all. It appears to be stuck, the volume button on the remote and on the front of the unit will not change the volume and there is no sound what so ever coming out of the speakers. I tried to unplug and leave it for a while then replug, same problem. I tried the system reset, same problem.

Please help!! I have not installed the software update because I don't have a serial port on my home laptop. I am really stuck here.