I have an iPad 2 running IOS 6.0.1. I recently changed my email address (the old one was hacked) and, to try and make sure I didn't pass anything nasty on, my Apple id. Now, whenever I try to update my apps, the App store insists on asking for the password for my original Apple ID. I've completely erased everything (I hope) from my iPad using 'Erase All Content and Settings' in the hope that the old email address would disappear. Nope. There it was again. I've tried all the passwords I can think of. None of them work. Over to you experts, please!! Thanks, Zappo.