Has anyone experienced the thread visualization changing (only occurs in "mirrored" parts) of the major thread.  What should appear as a dashed line, shows up as a solid (although lighter weight) line.  This happens in Plan as well as Side view.  When the interrogated, the line (or circle) is on Layer "0"!!!!  If I select the line (or circle) and move it to layer "None" all is fixed!!!  What is this feature representation moving to layer "0"?  Should we remove Layer "0" from our drawing template?