C3- you are using a different unit system (inches/millimeters)

[GeneMpls]

I get this message when I try to do a C3:
you are using a different unit system (inches/millimeters) than used when program was set up

The nice man I bought this from used mm and I use inches [and mm] and I have been pokeing about with it [unfamiliar with an Alpha] and I have always reversed the X and Y axis as I have always run the machine facing the gantry- I also switched the limit switch wires. It got the same message before I switched the axis BTW. I reloaded the Alpha configuration for this machine before I switched. I have spent a couple hours looking for where to change the units. thanks gene

[srwtlc]

VD Linear Units.