I followed the procedure to get my device on AT&T. Worked fine. Then I did a switch device from my Bold and after this I cannot get on the net, send MMS, and lost my AT&T Navigator. Data is working as I can get on Google Talk. I tried to repeat the process, but it will not let me re-add the service books, they are grayed out. I have resent them and pulled battery. Is there a way to manually delete them and re-add the AT&T service books manually?