Looks like my luck's run out, had the Tivo on a UPS but I think the hit may have come in from cable. Symptoms are that it has no video output (no Welcome screen) - green circle lights up when I plug it in then it gets to the flashing yellow circle for a bit like a normal boot up, then it reboots over and over again. Never outputs anything to the screen. Stuff I've tried: component instead of HDMI swapped out drive unplugged everything except HDMI and power (including cablecard) I don't think it's getting to the point of spinning the drive, I never hear it. It will respond to remote presses at the flashing yellow circle (when you enter kickstart codes) but nothing changes, it reboots and you see solid green circle then eventually the flashing yellow circles again, over and over. I would say it could be the PS but it looks normal on boot, maybe doesn't have enough juice to spin up the drive or video output? Anyone have luck with weakness fixing this?