I can't figure out what I am doing wrong.  I have a C-10 BOB with USB smoothstepper.  I'm using the standard cable from Teknic for the servos and verified my wires are pinned correctly inside my enclosure.

The LED on the servo is rapidly blinking green. I have my white and black wires connected to pins 2 and 3 and the yellow and brown wires connected to ground.

I connected the software to tune the motor and that worked fine, but nothing happens in Mach3.

I have tried changing several settings but I feel like I'm missing something and cannot seem to find a configuration guide for Mach3.

Any ideas?

Have you got the Mach3 manual?

Newfangled solutions website

Fixed it! In case anyone else has this issue. The C-10 breakout board must have the COM jumper flipped.