am upgrading Wells Index CNC machine and have posted in the general forum and have recd good advice but now need some help with the controller end of things - trying to use factory limits/home switches, west amp drivers, dc motors.  I have a Galil DMC 1830 PCI card, a 2900 opto module, and a PC running Windows 7 Professional 32 bit. from reading other posts seems that I may have to switch to Windows XP as well as purchase a full version of Mach 3 instead of the trial version.  also a little confused of which plug in to use.  any advice would be appreciated.
Thanks - Mike