Balloons becoming dangling

I have a very large assembly drawing. It uses manually typedin balloons that reference a BOM that is a separate document. MyBOM balloons keep becoming dangling. The BOM balloons do not haveleaders. They are related to the view that the are in. They aregrouped with other balloons to give the same result as a stackedballoon. (I think the person who initially created this drawing didnot know about stacked balloons.) If I change the text in theballoon, it will turn black. I save the drawing. When I open it thenext time, the balloons are green again. Any ideas why?SolidworksDrawings And Detailing