Got an Interactive Service Detection popup that said a program was trying to display a message; when I clicked View this message, my monitor changed display settings to show it, but nothing showed -- just a purple-ish screen. The message is due to an incompatible program or something is what some research shows. Eh. Must have hit a button or something.
Haven't used that in years. I also upgraded from Windows XP on November 25, 2011, so I didn't just get a computer with Windows 7, which would have incompatible programs.