you will have to forgive me because it's been a few when i worked on these. check your power supply voltage coming into the board, had one that kept blown the resistors that lit up some led's on the bottom of that board found that the power supply took a Crap and was shouting 35+ volts into the board. think it needs to be around 25 to 27 volts. caused big issues bought new board's, new software. don't know it this will help or not but wanted to toss it out there.
