Hello, and thank you for using this service.
I'm sorry to hear you are having trouble, and will help you now.
Have you tried holding in the sleep and the home buttons for at least 30 seconds? If not, please try this now, and let me know the result. Thank You.
OK. Did you do a destructive (hard) reset that actually deletes all data off the ipad, or did you do a soft reset that does not delete anything?
Please follow the instructions at the link below to perform a hard reset. Then try the shutdown again. NOTE: Before you do the hard reset, make sure to backup any data you may have on the ipad that you need that is not already backed up. For example, documents, pictures, or music.
Please reply to let me know the results of the hard reset. Thank You.