Is this showing up when you load the file in Mach3? If so, you may be able to get past it by going to the Config tab in Mach, General Config. tab, and under the General Logic Configuration window the I J Mode has 2 choices with radio buttons(Absolute & Inc ) try selecting the other button for the I J Mode and see if the file loads with arcs instead of the full circles. I think this is what I ended up doing to correct this situation. Hope this helps.