I am using DraftSight to create DXF files for my Etcher Laser and it works fine. My problem is that the art is a 3 letter monogram that has virtually no straight lines. I desire to trim the overlaps and most of the times it works fine but every piece has 1-3 places where I cannot get the trim to work. The line I am trying to trim turns a red color and nothing happens. ​​​​​​​I enjoy using the program with this one hitch.