Hey you were totally right about the gpgl and hpgl settings. When I use cutting master 2 it throws the machine into gpgl and wasatch won't communicate any longer. I changed the condition priority to manual and that will also help with software changing my settings. I was getting very fustrating inconsistent contour cut registration results also. I changed that the sensor speed setting to slow from normal and it seemed to fix that bug too. Just wanted to say thanks... you were right on.