Icloud backup alert has locked up my ipad 2.
I have a new Ipad 2, that has had a Icloud backup alert. That tells me i have not backed up my Ipad for 3 weeks, and backups happen when this ipad is plugged in, locked, and connected to wi-fi. But when you click the ok button, it does not go away. It will not allow me to change screens, turn it off, ect.. I can not use the touch screen at all. Has anyone had a similar problem? Any ideas or suggestions is much appreciated.
iPad 2, iOS 5.0.1