About 3 weeks ago now, I purchased a cnc second hand. It appears as if it was some kind of kit by keling. I have gone through everything and re wired, made sure everything is good. I am using Windows Xp pro, mach3 and using the parallel port, but it seems as if the computer is not communicating with the cnc. The cnc has power, the motors are locking up but it will not jog. I'm not a super computer guy, but can get myself into trouble, but after messing with this for 3 weeks I have decided to come get some help. Thanks Nick!