I've never had trouble with my Nook before... My Nook Color froze up and I can't even shut it off. What can I do?
This is the advice that was given to me by bobstro in another thread. Hope it works for you!
"Try holding the power button down for 20-30 seconds, letting go and holding it down again. On the 2nd press, you should notice a slight flash, and then, hopefully, it'll fire right up."