I may have not made myself clear - I turn on the tivo and it commences booting - you know the one that takes about 7 minutes apon which it goes to a grey screen and asks me to press the Tivo, Live TV or Fowemat button to switch on the device - it does not respond to any remote input and then after a couple of minutes the lights go out - dead.

I have left it like this and nothing happens - I turn the mains off then back on - the process above repeats.

Cheers.