As far as I can remember, I was using XMMS to listen to an MP3 on a CF card in my 860, with the screen blanked. I hadn't done this before. I closed the lid and pressed the power button, and now my Z is bricked. It will charge (yellow LED comes on and goes out after a while) but that is all. I have left the battery out overnight, and tried OK and D+M while inserting the battery, pressing the power button, etc., but nothing.
I might have a hardware fault, but I am worried that something in the ROM has caused this. Is it possible? It'll cost me a fortune to send it back to Japan for a repair they surely won't do under warranty.