I currently am using @XLookup succesfully in "On Element Change" of my address field to search the database for duplicates to safeguard against entering a form that may already be there.  This works great in Add mode, but if I change the address at all in Search/Update mode, the programming warns me every time of a "duplicate" address because it is finding the very field I am working on!  Any ideas on how to deal with this?