i tried setting it up on my testing pc, with no machine attached. To do all the button mapping ect. I mapped the probe to a key on the keyboard and start one of the macros and press the button on the keyboard. The probe LED lights up but the macro doesnt change......... I see that this is setup in inches, so I changed my native units to inches as well. Still no dice. Does it need a hardware probe on pin 15 or should what Im doing trigger the macros functions? Like I said, Im trying to "PROOF" it right now before implementing it on a machine.