I have a 7766 in a router running stepper motors. It had been working fine daily and then one morning on startup I got an error message that it couldn't reference the screen set. I reloaded Mach 4 and reinstalled the parameters and all the motors move but when I try to home it I get the "reference complete" box instantly but Mach disables and nothing moves. The error message says "Motor 2 (Y) isn't enabled in mach" but I can't find anywhere it isn't enabled and it jogs fine. All of the  M LEDs are green and the Input and output axis LEDs are yellow in the diagnostic screen. The proximity home switches all trigger correctly. Any ideas?