Mach 3 is set up and running with a Galil controller and servo motors. I can jog all three axes. However when I enter a G-code command G31 X-1 F30 I get this error and no motion. "Cannot probe in inverse time feed mode error". Any clue what that means I have done, or need to do? Everything works fine in Galil SmartTerminal.

Never mind! I should have entered G1, not G31.