PM the new setup should just move with the older settings file, just not the right speed or distance. Nothing has changed electronically between Mach3 and the 2000LE controller, but you now need a lower 'steps per' count in the motor tuning, and adjustments to the speed and acceleration. I've got the files for the older setup on my website, but not yet seen the figures for the new ballscrew setup, but the ballscrew is 2.5mm pitch rather than 20tpi so just over half the resolution. With the half stepping driver we get 160 steps per mm or 4064 steps per inch ( down from 8000 ) but speed and acceleration are something I've no handle on as yet.