Originally Posted by mickylonster
I am resigned to this situation until I return to the Uk in Jan2010 I was just wondering If this prolonged use with the book unable to shut down will be detrimental to the battery ?
Micky, I am sure others have suggested it but if not, have you tried formatting the internal memory? Most of the "can't turn off" issues seem to revolve around some kind of internal memory corruption and are solved by a format.
Of course, this will erase any books on the device.