Run Time Error:-2147467259(80004005)
Thats an automation error. It might be in a vba, when you're trying to connect with another document. Check that procedure. the problem should be around there. Or may be in vb when trying to update a data base.
Also try debuging step by step (F8), if you cant find the problem, post the line where the error occurs, and if it envolves variables, it will be good to know what kind of variables they are.