Thanks for the quick reply. I was suspecting the display board but hoping I was wrong. I will try a key switch and see if it helps. We happen to have a Hyster version in the shop right now as well so I may borrow it to test. Not sure where I would find a computer to run software that old or the software, but one step at a time. If it ends up being the display, it will be getting parted out or scraped.