My box has been working fine as late but the past few days its been resetting itself and now its done it again yet when it restarts it does'nt come out of standby, always a amber light. It then proceeds to do the same thing which is restart itself over and over again the same cycle.
I tried the up, down left right arrow thing to format the drive but that doesnt work.

http://www.digitalspy.co.uk/forums/s...thomson+format

have a read of this, it might help unless it's hardware related.