this is driving me NUTS!!!!!!!!! I've been using Windows Vista Ultimate for almost two months now, and all of a sudden tonight I can't log on to my laptop. Every time I tried I received the message "The User Profile Service failed the logon. The User Profile failed to load." I had successfully logged on to it only five hours ago, so what the hell is going on!!!! i'm the only account on the laptop and no one else uses it!!!! please please please help me!!!!