My Captivate stopped working yesterday. I was using it and it completely froze on me. So I restarted it. But now the phone won't load back up. It goes through the start up AT&T splash screen and then to the Galaxy S screen and after that when I put in my unlock pattern it does nothing. The screen will be blank after I put in my unlock pattern. And then after a few seconds the screen will turn back onto the unlock screen and go then in a few seconds it will be blank again. And it keeps doing it over and over again. If I go to the AT&T store or Best Buy and tell them what happened will they replace my phone. I do not have insurance or anything on it though.