Last night while I was in the middle of performing, the music suddenly stopped, and the screen turned blue and said, "CRITICAL ERROR" and told me to restart the machine.

Thank G-d it wasn't during the dancing, but nevertheless I got a few strange looks.

Did anyone else have this problem?

I wasn't doing anything out of the ordinary. I was just playing a regular style (not user) and hadn't pressed any buttons at the time of the error.

Chony