Text messaging app crashes

[Guest jackgt]

I have a stock Galaxy S2 from AT&T, and I've had it for a few days. At first text messaging worked fine, but now when I go to create a new text message and start typing in the To: name, the app crashes. Every time. I have to go to contacts, find the contact, and send the text message from there. Any ideas?

[Guest jr866gooner]

Settings,applications, under the all Tab scroll to messaging and clear data. I'll be honest I'm not sure if this deletes texts so backup first just in case!!