This is a strange one. While attaching pictures to an e-mail with my iPad2 my e-mail app froze. I closed e-mail and restarted. When the e-mail page came up the screen was empty and unresponsive. After about 20 seconds the screen went black for a moment and the back to the desktop. If I go back to e-mail by double tapping the screen shows an empty desktop. I have rebooted a number of times and updated to a new version of ios. No help. I installed the Yahoo e-mail app so that I could get my e-mail which works just fine. Any ideas? Thanks!!