I just installed and configured a MPG2 jog pendent from CNC4PC.  I cant seem to get the pendent to communicate with Mach3.  I installed and enabled the brains and configured per the instructions.   Is there a good way to test weather the LPT2 is working.  The PC device hardware say its good with no conflicts.  I see output #6 is the LED.  However the Led on the pendent is not lit.  Any help would be appreciated.