Hi,
Thank you for your fast answer. It was that my front setting in advance was at 120ppp and to fix the front for Mach3 I set it to 96ppp, now the Mach3 screen is OK, but will need magnifying glass used by jewelers to see all my other programme.

I will use a second computer to run Mach3 in the future, for now I am looking at it to see if it will work for my need.
Do someone know if Mach3 could display a Go To DRO ( the position from where it is to the position it will go and what is the distance to travel to get there)?
Could it read variable in the G-code?
Thank you,