One point of interest; Timer 0 is used in this program. It is disabled before, then reenabled after the DIP switch read sequence, but I thought maybe the Timer doesn't release the bit for general use after it's been enabled? Is that a possibility? I'm already planning on moving the timer over to timer 1 (it has no dependency on external timer control), but I'm hoping I can understand why I have this problem before I go on; just to have that little bit of info tucked into the back of my mind next time...