"Journal Long Form workform" in bibliography


I have some journal articles that repeatedly appear in the bibliography list of a Word Doc as “Journal Long Form workform” where the journal name is supposed to be. I have deleted the respective citations from the Word Document and inserted them again, but the problme remains. I have carefully checked the reference, deleted it, and imported it again (from Elsevier) - still the “Journal Long Form workform” entry instead of the journal name. I even entered the citation by hand once again – to no avail. 99% of the references are fine, but from time to time this happened to me before. (Note that I converted all references two years ago from Procite to Endnote; not sure if this could have caused this problem).

I would appreciate any help.


 (Win XP, MS Word 2003,  Endnote X.0.2)