This is a used TiVO I got for my dad for father's day. I hooked it up when I was home last week. He went to watch something yesterday and I am not sure exactly what happened, maybe he shut it off and turned it back on or something. But he says that it says "powering up, just a few more moments" then an "almost there" message and then it goes back to the powering up message. And it just keeps doing this over and over. I had him unplug and then plug back in and the same thing keeps happening. Any suggestions?