RobertT: I also seem to recall in earlier versions of the software that during a reboot, I got information displayed on screen as the T-box ran a POST etc. None of that is displayed any more, so I usually have to wait until the TV picture comes back up to know it's working.
I don't recall ever seeing one of those with the T-Box - the old decoders used to display some info on startup but with the T-Box its always been black screen for ages, then wait for ages as it does whatever it does with its Please Wait...