Sorry if this is redundant, but I have just aquired a Partner 00 with a Centurion 1 controller. Price was "we will load it if you want it". Machine runs fine for a random time then locks up with the cursor racing randomly across the screen. Brushes in motors have never been changed. question is, If motors are properly serviced, can the electronics be upgraded to something more user freindly? I have experience with the Bridgeport EZ-Trac software and old GO-ELAN software, but would like to translate files from Autocad Release 2005 to this machine (2 axis only). Might entertain a z axis upgrade but really don't need it as this is a home machine shop for parts only. I am not an electronics whiz but have resources who are. Any cost effective ideas out there?