Three things you should do (in this order):
- Close whatever app is open on the iPad, then double click the home button to open the app tray, tap and hold until the red minus appears and close all apps in the tray
- go to the Settings app, select Safari, and Clear History and Clear Cookies and Data
- Rest the iPad by simultaneously holding down the Home and on buttons until the iPs shuts down. Ignore the off slider if it appears. Should about ten seconds more of less. Then restart the iPad using the On button.
Obviously, if that doesn't work, post back.
I suspect something getting hung up in the cache, or a cookie that does crap it shouldn't. My solution was probably overkill, but I figured it would work.