Issue on mail ios5 ipad 2

[saguilar]

Since upgraded to ios5 my mail doesn't show " load more message..", also when replying an email and I save it and when I return to continue writing the "cancel" and "send" button is grey out cant select either one so I have to Close the app and open it again!.. Also every time I save and mail and then I send it it doesn't show the reply arrow after on my in box!!.. It used to work perfectly before upgrating to ios5!!...Is there a way to fix that??...should I restore my ipad2 from zero??..anydoby has the same problem?.