Errors when opening a Word document

Not sure if this is EndNote’s fault or MS Word.  When I write a new document and insert a number of EndNote references all goes nicely.  Then, when I add in some Excel tables (Paste special, link to original spreadhseet) the problems start.  After I do that, when I open Word I get a bunch of very unhelpful pop-up windows that inform me that EndNote has an error, and the little warning boxes multiply like rabbits in what seems to be one error for each EN reference.  If I take the tables out of my document all is well with the world, but I kinda need both my tables and my EN references!

Anybody else have this issue?  I know I saw the same behavior with Reference Manager before I switched to EN so I am not sure which came first, the chicken or the egg.