I have a ULS 25E purchased new around 1996 that since it was used mainly as a hobby it has lasted with the only major replacement a laser tube last year. Recently I moved the laser into another room and now find EVERYTHING seems to work except when you send a file the laser doesn't respond. I have tried removing all the removable chips and reseating them. The ULS 25E has two(2) EEproms that I am looking to replace to see if that solves the problem however due the age no-one will even discuss how to obtain replacements. I would gladly purchased a complete LAS4 control board if anyone has parted out a ULS 25E and is selling the parts.