reference update problem

a publication i downaloaded into endnote listed the surname of the author incorrectly - used the 2 initials inside of surname

i corrected this manually in Enbdnote - now when i update references both references show - the correct one AND the incorrect one

when i go to my list of references i only see the correct one NOT the incorrect one but somehow the database still has both

I have the same problem, and the unformat/ reformat process is not working. Is there another way to clear the temporary library?