The other day, the front of my HR20-100 went blank. There is no indication that the unit is even ON, but everything functions fine, using the remote. None of the front buttons work, and the blue ring is blank. It simply looks dead. I need to watch all of my shows before I call DTV, or they will probably swap it out. I wonder if I would get a different model? Has anyone else here had this problem? I've tried the unplug-wait-plug back in thing, but there is no change.