Okay, point taken. So I disconnected all the motor wires except Z axis and disabled all axis in "Ports and Pins" except Z. Z should be pins 6 and 7. DRO shows movement, Z axis doesn't move using the page up page down keys. I cycled through all the possible pin combos, 2 and 3, then 4 and 5, then 6 and 7 and finally 8 and 9. No matter what, Z axis doesn't move but DRO shows movement. If I enable the X axis, no matter what pins I have in the X axis field, the Z axis moves but only if I use the X axis arrow keys.
Thanks,
Dale