I think I left my Gigabeat on play, rather than turning it off when I put it away last.
Now it seems dead to the world. The screen is blank, no respons when I press a key, and no sign of life when I plug it in to charge (charger as opposed to USB cable).
Does it just take while to come back to life it it's been completely run down? I realise this is a question that will answer itself in due course, but having got the bugger just the way I want it, now I'm a bit twitchy.
[Edit: flipped the battery switch and now it's come back to life :-)]