I had my HPV-4000T for about a week,
and one of the issues I have is also with switching on.
I Hope they will fix this at some point.
I find if I switch it off, before I go to bed, then try to switch on, the next day, from the Remote Control, the channel number appears briefly, then it seem to switch itself back off again.
Switching on using the button on top of the box works better, but still takes a few goes sometimes.
For the moment, I usually don't switch it off, but this issue needs to be sorted.