Hello Darren
Thanks for the reply and the information. However there are a few things that do not add up.
Firstly I am running the latest image and have been since I got the TIVO working after you did the PAL mod.
Secondly the TIVO is located in an open front cabinet with plenty of air space between it and the walls. The nearest heat source is a computer monitor that is located on a shelf above it but has not been used in several months.
Thirdly when the error message was received the TIVO was removed from the cabinet and the external case was removed.
Finally the ambient room temperature since I have been using the TIVO has not gone over 25 degrees.
Is there anything else that could cause the overheat message such as a software failure?

I have imaged the 6gb drive and I will let you know how it goes.

Regards

Phil