I've been using SW for a few months, so sort of a new-be.  Just today when I created a dimension in an assembly (not a multi-part body) to check a distance the system created 2 large bars at the head and tail of the numerical values.  Any idea why?  And more important, what can I do to eliminate them?  I have tried various settings in the Property Manger, but all to no avail.  I don't believe I have made any other system changes.