In the past few days, every time I lose Wifi connection and the pre switches to Sprint data connection, my gtalk logs out and give me an "incorrect username or password" error. When I get back to wifi, it logs on properly. I have installed the messaging patch, no change in the malfunction. I have switched from F105 to UK, no change in malfunction. There was no change in configuration prior to the error cropping up. Any ideas on how to fix this?

Thanks in advance for any thoughts.