Upgraded Curve 8330 OS to 5.0 and can't seem to send text now. Need help.

go into your phone, menu, options, Smart Dialing...and change it to the US.  Probably is set to Thailand.

I tried changing the Smart Dialing seetings but it didn't help.  I have the same problem with the OS 5.0.438 on my Curve 8330.  I can't reply ot initiate new text messages.  I receive the following message x - (SMS error 96, Message ID xxx) Permanent Error