Friends, I have recently upgraded to iOS 4.2.1 version in the hope that it will increase the performance if the iPad. But After upgrading, it created more problems for me. My ipad has lost the ability of the screen lock. This is very frustrating for me. One of my friends also did the same upgrade but he does not have such issues then why this is happening only to me. Also there is problem with mail. I can see multiple mail accounts displayed in a different way. Please tell me that what can be the problem with it and also the way to remove this issue.
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