From your other thread -

Quote Originally Posted by Palletlad View Post
oh on a side note I just seen a thread about the parallel ports and it was mentioned that a parallel port to USB connector will not work... I am confused because the machine came with a Parallel port to USB connector?
A standard usb to parallel port adapter won't work. The timing for a generic parallel port is not that strict, and is not good enough for motion control. There are however adapters that look very like a standard adapter, but are in fact dedicated motion controllers in a standard case (UC100 & PMDX-411 are two from reputable sources).

What drivers were supplied, and what does the adapter show up as when connected to the PC?