I received an email from Humax saying 'I have received information that the full version of the software is to be released on the 21st of this month which will solve all current issues with 4000T units.'
Whilst I had to laugh at the all current issues bit, if the reboot issue is fixed it will be a start.
As an aside, is anyone else concerned with the affect these reboots are having on the disk drive? Given it usually powers down when recording and/or playing a recording I can't imagine it's doing the disk any good. I only have 1 year warranty on mine as I only noticed the 2nd year warranty slip in the box after the first month and I'd only just started using it after moving house.