Man, but it was scary! I had just started a book, after finishing the preceding one in the series and was about 12 pages in, when suddenly, I couldn't turn the page. I tried again, no dice. I tried to turn back a page, go to home, enter options, nothing! Couldn't put it into standby or turn it off.
I was so tired though, I couldn't deal with it, so I put it on the bookshelf beside my bed and went to sleep. Still frozen this AM. So I found a needle (I seem to have no traditional paperclips, must rectify!) and pushed the reset. Slid the power switch. Nothing. Tried again, nothing. Fired up the computer, got online, googled, OK, had tip to hold the reset for 5 seconds, THEN slide the power switch. That did it!
And my proofreading notes had survived... I was afraid I'd lose them.
But my battery, which had just gotten down to two bars before the freeze, changed to one bar after the reset! Is that normal? I have it charging now, but usually it goes forever on two bars before it goes down to one bar. And even then it can last a good while before I see the message about charging.