Hi Popeye,

Mine did this when I first got it a couple of weeks ago as well. Once it was turned off I could never turn it on again, except by plugging in the power lead.

I rarely use the full shut down option, usually just power save by putting the cover on...which lasts for days and days. But the last few times that I have, it has come back to life and booted up by holding down the power switch for a while.

I can't say what I did to change it. Try holding the button down longer, try using power save rather than power off for a while. Hopefully it will sort itself out as mine did.