i have just load mach3 into my pc running windows xp pro and i can not get it run propery i have the correct settings as i used in my last pc but this one is not doing so. when i load my gcode it is cutting the parts like the where 1/4 the size i can't fathom this out i have been using same cnc machine the units are set to mm and the software i use is cut2d and that is set to mm the only thing that i have noticed that i have not notice before in device manager i see mach3 pulsing engine i have never seen that before??