I opened a doc in my email, and cannot close it, nor access my email. Help
Tap in the center of the document. Some options should show up at the top, including a Done button at the left (if memory servers). Tap that to close the document and go back to the mail view. The control/menu bar disappears after a few seconds to give you a better view of the document. Just tap in the center again to get it back.
If that does not work, try the following usual fixes.
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The usual fixes:
When you have problems with an app it's a good idea to clear it from RAM.
Close/Clear the app: With the problem app closed, double tap on the Home button to get the multitask bar. Tap and hold on any icon in the bar until they jiggle, then tap the minus sign on the problem app. This will remove it from RAM and insure a clean start the next time you launch the app.
If that does not work try a restart,
Restart: Hold down the power button until the power off slider appears. Slide it off. When the iPad finishes shutting down, hold down the power button again until the Apple logo appears. Apple recommends you restart the iPad at least once a month.
and then a reset if that does not work.
Reset: Hold down the power and home buttons until the Apple logo appears. The iPad will reboot. This usually takes a bit longer than a restart.