My computer died so I downloaded the same version of Mach 3 (ver. 2.63) on a similar but newer computer. I copied the same xml file to the new computer like I usually do when this happens. Everything seems ok, I can jog the machine etc. However, when I load a gcode file that worked fine on the last computer, it opens in Mach 3 several hundred times larger than it should be and the toolpath display is incorrect. I've selected inches for units but can't figure what is wrong, though I suspect it's something simple. Any suggestions. Thanks.