It is actually DAMAGING the displays, and if you had an Altec MPU board in the game... That could be nasty...

Just a quick point about the Alltek (yes, Nino misspelled it ) MPU board: It has a voltage clamp built into the board, so that if the power supply has a problem in the +5 Volt section, the board will be protected, and not boot up.

You will see a Red LED and a Green LED on the lower left hand side of the board - the Green LED means that voltage is OK, and the Red LED means over or under voltage.