Getting ellpises

Hi has anyone problems with a circle becoming an ellipse?
I’m using an all in one pc I had gifted to me with fresh install of w10, and installed Lightburn. This pc gives a circle 8mm longer Y than the X.checked everything on the machine all spot on. Plugged my original laptop in and it does perfect circle :woman_shrugging: settings are identical in both machines :thinking:. HELP please.

Do you possibly have rotary enabled on the computer creating an ellipse?