Ok, is this a non-jailbreaked iPad? If so, have you done a reset? Hold down the Home and Power buttons until the apple appears. It will take longer than a normal power off/on, maybe a minute before the login or home screen appears. No data should be lost in this process. If you do have a JB unit, someone else will need to help as I'm not knowledgeable in those units.
"Never jump into a pile of leaves with a wet sucker."