That does seem to be what's happening. I think it tries to connect again and authenticate with the saved login information, but sends the wrong password. I think I found out exactly what was causing it to "forget" my password. A person on
this site had the same issue. Apparently the encrypted password stored in the registry is not being sent properly. The writer was unable to find a solution, but did code up a workaround for his/her kiosk application that would move the login box off the screen whenever it came up and type the password in automatically. I'm not sure how that could be implemented normally though - perhaps just a small program running in the background?