Hi, I'm having a problem with one of my two Series2 Tivos. I've had it hooked up to Dish Network for years now, no problems. A few months ago, it said it wasn't receiving the satellite signal, so I plugged the Tivo in to another Dish receiver elsewhere in the house, it received the signal fine, so I plugged it back into the original receiver, and it was working again so I figured something just got jostled. Every once in a while since then, the same thing happens. The signal stops being passed through, or at least that's what the Tivo claims, then I restart the Tivo and it works again. Well, it happened again tonight, but despite repeatedly rebooting the Tivo, the problem hasn't been resolved, I still get a black screen and the "searching for signal" error message. I've connected the satellite directly to the TV to confirm that the signal is in fact being sent through correctly from the satellite receiver, and I even replaced the cables connecting the Dish receiver and the Tivo just in case there was a problem there. No change. (As an aside, the curious thing is that it "failed" during a recording, yet apparently despite the fact that the Tivo claims the signal was not coming through, it continued to record part of the program I had been recording, and even recorded several minutes of the next program which was scheduled to start immediately after the first. My rebooting of the Tivo interrupted those recordings, but since I haven't been able to replicate it recording the program even when it claimed it wasn't receiving the signal.) I've checked the Tivo.com troubleshooting section for this problem on Series2 receivers, done everything they've suggested, the video input source is still listed correctly, I ran the troubleshooting function from the Tivo, I changed channels to see if it was affecting all or just some channels (all), and rebooted the Tivo, all to no avail. Anyone have any suggestions what I should do next? Should I redo guided setup to see if that helps? I just changed the HD about a year ago, so I'm hoping that's not the problem -- I upgraded to a larger drive sold by the fellow on eBay that folks here recommended. Think I'll have to buy a new part? (I've replaced hard drives on both Tivos, one fan, and one power supply over the years, so I can probably manage basic repairs) Any advice or recommendations would be greatly appreciated! Thanks in advance!