If you are experiencing issues with functionality on your iPad it can often be rectified by clearing the cache and history for the Safari browser.  The process is fairly easy.

1.  Find and touch the settings icon.
   
2. On the settings page find Safari in the left menu and touch it.
3. On the opposite side of the screen scroll down to the bottom of the page and find 

This procedure will remove all saved history and website data so it will be necessary to login to any open sites again.