I have a Bridgeport R2E4 CNC mill that will not enable axis. It goes all the way through the boot up process up to the enable axis screen then shows a drive power supply error instead and wont acknowledge the error. I can try to enable the axis and hear the contactors pull in, but the axis motors are not getting power. Sounds like Drive Power Supply problem to me. Question: does anyone know of a retro kit that would bypass the Bridgeport power supplies and computer, or a source to buy a Bridgeport drive power supply?