When I open my mail application on my new iPad2 (64GB wifi), the screen is effectively blank and none of the small icons in the window are responsive to touch. If I try to access the mailbox setting through the settings menu my iPad semi-freezes. What can I do to access my mail again, as this is a key feature I need! Help!
You can start with these steps to see if they help.
Basic Troubleshooting
These are basic steps you can try if apps suddenly quit on you or if the your IPad starts to behave erratically. Quite often these simple fixes will resolve your issue.
Quit the app by double tapping the home button to bring up the multitasking/recents tray at the bottom, hold down on any of the app icons in the tray until all the icons wiggle, then tap the minus sign in the corner to quit the offending app or apps. Try your app again.
Restart the iPad by holding down on the sleep button at the top of the iPad until the red slider appears, then slide to the right to power off the iPad. Turn the iPad on again by pressing the sleep button until the Apple logo appears. Once the iPad has fully rebooted, find your app, and tap the icon to relaunch.
Try a hard reset by pressing and holding down on the sleep button at the top of the iPad while holding down on the home button at the bottom, until the Apple logo appears and the iPad restarts. Launch the app again and see what happens.