Hi,
you've posted in the Mach4 section of the forum, you'll get better results in the Mach3 section.
Have a look at Config/Native units. What are they?
Have you referenced (homed) your machine PRIOR to engaging soft limits?
Do you have home switches that even allow you to reference (home)?
Display table mode only works when soft limits also works, ie the machine is referenced.
These last two issues are related.
Craig