Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
Yes, I had it, there already are a few thread it but hey, I'll give it my best to help, it's pretty simple really :)
Basically back up your iPad and restore it. If it doesn't work, keep doing it until it does. Worked for me! Good luck!
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.