Hi Hood, I think I did, I'm sitting here watching the footie and playing on the computer. As I've said before I do my program compling in the warm. I've just looked at the config on this computer and they seem Ok (this computer does not control my CNC. I think I might have made an error in what I called the profile. The snow is belting down in Brum so will have a look when it stops. Can you confirm that I did not make a mistake in leaving the parallel port driver box ticked when installing Mach3. Jim