OK I did a hard drive upgrade last night because my old tivo hard drive I suspected was failing. I would get pixels, few random reboots, and on some channels not all I would get a message box saying searching for satellite signal on tuner 2 always tuner 2. I have switched the cables and it still says tuner 2. I had DTV come out and look at my dish replace splitters and then tell me they would have to give me a new DVR. The problem with that is DTV does not have tivos anymore there DVRs are crap!!! So I replaced the hard drive and I am still getting pixels and the message box about the tuner. No reboots yet but I am sure it will happen! Anybody know what this could be????