That has happened to me a few times.
Originally Posted by cobraic
All I had to do was remove my SIM card, that does something, I'm not entirely sure what, and then put it back in and you have to put all your email account information in manually like you were setting it up the first time and it works.
At least for me it did.
Had the same thing happen on my Samsung t349 and had to do the same thing, I think removing the SIM card resets the whole thing so you have to set it all up again from scratch.
*After All, There Is Nothing Real Outside Our Perception Of Reality, Is There?*