Need help please. I have a KRMx02 router driven by Gekko G540 and Dell PC running Win XP sp 3, and Mach3. The machine has been running flawlessly for a long time. I have made no changes to Mack3 nor made any changes/updates to XP, and have not installed any new software. A few days ago I was running G code that has worked fine before, when on a new run the z axis began running down when it should move up. Later the same began happening with the y axis. The manual jog keys cause correct motion, but the DROs indicate motion in the opposite direction. I had this problem with the z axis over a year ago, but can't recall how I fixed it. Any help or suggestions will be greatly appreciated.