[cpjr]

Plug your iphone into Itunes, it will recognize it and give you a screen for the phone. Sync your phone with Itunes first, so it will keep your info, sms msg, settings, etc. Then, in the middle of that screen should be a button that says "restore". Hit it.

When its done there will be a button in the middle to "activate as new phone" or "restore from backup". Hit "restore from backup" to use the backup you just made.

But, if that doesnt change anything, I would call AT&T.