Yesterday I purchased a new document file and began making annotations to the document. Today when I re-opened the new document the annotations that I made yesterday had disappeared. Upon further investigation I discovered that now there were multiple annotation files (.isa) and that the new document had dropped the association with the orignal .isa file. When I reassociated the original .isa file my annotations were restored. However, I additionally discovered that the file association would again be dropped if I followed an embedded link to a cross-reference in the document. After accessing the link and returning to the document, the .isa file association is dropped again. Please help me.