We recently got a TiVo HD and after some initial problems we're up and running except for one problem. Sometimes it decides to stop taping a show we've requested because, well, just because. I tried to tape the UT football game on Saturday and got 3 minutes. Today I was 2:45 into the Texans game and stopped. Maybe my wife programmed it to hate football. Today I was watching the game (started late, trying to catch up to real-time) and noticed that it was taping the game and some TiVo suggestion on the other tuner. Then things seemed to lock up a bit and when I went to live TV it wasn't even showing any channels. After a minute or so I could change channels properly and all was back to normal but it had stopped taping (even though the 4 hours I requested wasn't up yet). Could this be a cablecard issue? Tuner issue? Bad box? Gremlins? Help! Thanks!