M6 won't shut down.

Ok, my M6 has said shutting down for the last 15-20 minutes but refuses to actually shut down. When the screen eventually does go black (presumably in a powersave mode), any touch of the buttons brings it back to the same screen.

I've tried the reset, hard reset and format described in the FAQ, but nothing seems to be working.

Suggestions?

edit: never mind - player finally reset