I just had a similar issue happen to my DTV setup Monday night/Tuesday morning, receiving the content error message. The main Genie is fine and displays 1080. The other two (one on an older Insignia 43" LED and the other on a 49" Insignia) will not display anything but 480 via HDMI. I tried all the known resets and then got the standard response from DTV's Tech Support: They'll ship you the 10 pin-component cables for $7.99 each. I'll seek a cheaper price elsewhere but I agree it is highly disappointing I can no longer plug in an HDMI cable to my Genie Minis for audio and video.