OK, so I was messing around with my HDTV settings on my 811 last night. I changed the resolution from 480 to 1020 with no problem. But when I changed from 1080 to 720, I lost my picture. So now I'm stuck with a blue screen, as if someone had unplugged the box from the back of the tv. The box appears to be working normally, but it is just not communicating with the television. Anyone else out there had this problem, or have a suggestion? Thanks