Anyone seen this? TiVo died recently. When power cycled there was nothing on the screen at all. I assumed a bad drive and tried to replace it from an old image onto a spare 80Gb disk. After restoring on to the new drive on power-up it has the grey "Welcome - powering up" screen for maybe 8 seconds. It then resets. After that it just keeps looping - shows the grey screen for maybe 2 seconds and resets. If I power cycle it everything starts again; 8 seconds then it loops. I tried putting the old disk back in and this doesn't happen; no grey screen at all. I'm thinking it may be the power supply What do you think?