Can you run a schedule constraint to turn off the LCD panel instead of shutting down the entire unit?
I know this isn't a fix, but it would make your system a bit less of a headache until one of the experts figures out a solution.
Also, I know one of the guys in our office was accidentally hit the Initialize button (Which means format/clear, not set & run in this instance) after hitting Apply in the client settings. Not sure that would make any difference though.