[CAD_CAM_EDM_DRO] D&M mill

Does anyone have experiance with a CNC of this type?
I bought a D&M 6 last year, and have used it quite a bit, although the
backlash
program I got with it does not work, and it uses it's own card to
communicate w/ the operating computer,(in DOS) so the newer programs that
are availible
usually use the printer port to communicate with the CNC and don't seem to
want to work with mine.

http://www.labvolt.com/training2.asp
mine looks a lot like the 5600.

these people have bought out D&M, but don't offer any support.
I am looking for anyone with experiance with these type mills, good or bad.