Advertisements Happened twice in the last week. I'll turn on the entertainment system, and there's nothing coming down the HDMI cable from the Roamio - no video, no audio. Box seems to work otherwise - Minis are connected and running, and the front panel responds to remote button pushes. Rebooting brings video/audio back. Since I can't see any output, I just have to pull the power cord, but it just occurred to me that next time I'll try pressing the "Resolution" button on the back, see if that's relevant. Anyone else, or is my hardware failing?