I am new to libreCAD vsn 2.1.3 and still figuring it out but I think I have inadvertently set a mode or switch. In my drawing I have a couple of circles and drew a couple of vertical lines. When I went to draw a 2 point line across the vertical lines which I will use to trim the line, the 2-point line extends infinitely through the 2 points so I am unable to trim or divide it. I have tried removing the vertical lines and closing and re-opening the drawing. Next step would be to start over and not use the vertical lines and see if that works. Any suggestions would be appreciated.