Hi All, At some point my Vista started having a problem with UAC: whenever the UAC dialog comes up it's buttons doesn't respond, and I can't even move the window by draging it's title bar or close it. It just sits there doing nothing for 2-3 minutes after which it closes w/o opening the program that made it pop up. I wanted to disable it, but it wouldn't let me change security settings in my account Any ideas? TIA