I am following the DraftSight Getting Started Guide. I'm at Lesson 2-1 on page 81, the guide has me select 2 entities to specify as cutting edges but when I specify the second cutting edge the one I just selected goes back to a solid line and the command line reads "found 1, total 1" instead of "found1, total 2" as in the guide and does not let me complete the Trim command.