I have a drawing that I created in SW2013 back in April 2014.  In that drawing I had two CG symbols shown, one for the entire assy and the other for a subassy.  I added these symbols by using the import Model Items function.  Now I have updated to SW2014 and need to revise that drawing, however, when I open the drawing in SW2014 the CG symbols are not shown and when I try to add them with the Model Items function they still don't show.  Does anyone have an idea how to get these symbols back into my drawing?

Thanks