re-post; trouble with object center lines in CAD blocks, importing DWG

[PaulinColorado 0]

CA X8 (these are screen shots):  When I import DWG files from my engineer  (who is using Revit), (see image of CAD block);  or from the CA Simpson Hanger manufacture catalog as a CAD Block, (image of joist hanger), into my CAD details;  I get multiple lines, vert. Horz. in what appears to be both the holes in the hangers and fasteners.  How do I prevent this from happening?  When I delete the hanger from the CAD detail, all lines go away so I know it's part of that detail.  I cannot "explode" the CAD detail to isolate the Active Layer Display options...thanks.  Only tedious fix I've found is to delete all hangers and fasteners and redraw them with CAD, not a good option as my plan has 36 CAD details.

[glennw 986]

They look like circle or arc centers to me. 

Try toggling off Arc Centers and Ends - although it may not work for an imported cad block.

If it doesn't work, you may have to edit the original cad work in the cad block.  

[PaulinColorado 0]

sometimes the simplest of solutions makes one seem like a genius...that would be Glenn!  thanks,  suddenly I feel inferior...   

Solution  toggling off Arc Centers and Ends; in tool bar...thanks again.