Help with mach3 center finding script

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HI
IM HAVING PROBLEMS WITH THE MACH BLUE SCREEN SCRIPT
I USE METRIC
I HAVE TRIED CHANGING IT MYSELF, I CAN'T GET IT TO WORK
I NEED A SCRIPT THAT CAN FIND THE CENTER OF A 40 mm PIPE
AND MOVE AT ABOUT 100mm A MINUTE
CAN ANYONE HELP ME PLEASE?
EDDIE

First, is mach set up to use metric units?

Second, can you post the VB Script for the button?

Jeff.