Got my phone this morning and it will not send or receive any SMS messages. The phone is not jailbroken, running 3.0. Everything else on the phone is working properly, though. When I first got home and synced it up with iTunes, I told it to sync from the last backup (last backup was from my 3G back in February). Could that be the problem? Should I just go back in a set it up as a new phone? Sorry if this was a newb question.