Hi Jem,
We need additional information in order to help you. Is this the controller that you have?
http://www.prototools.co.uk/shop/download/media/controller/zero3.pdfIf this is the controller that you have, the PMDX-411 needs to connect to the DB-25
on the LEFT side. To accomplish this you will need either a gender changer or a
straight through cable with a female connector on each end.
You should not need to change any of the settings inside the controller box.
Also, please use the Help > Support > Package Current Profile option from the menu bar
in Mach4 to generate a Profile Package from your machine and send it to us for analysis.
Regards,
Steve Stallings
PMDX