I have an Xperia X10 that was originally on Orange. It was unlocked and given to me as a gift and has been used on the AT&T Network for the past year. I ran a software update today and now have no access to the internet. I did a Factory reset and was able to access the internet briefly but then got a message that asked me to confirm my carrier, which I did. It then told me it could not access the settings or something...I can't get it to say that again. Now...no internet again. Any suggestions?