<A target="_blank" href="http://www.bleedyellow.com/blogs/NotesShop/entry/sntt_how_to_fix_those_document_is_already_locked_by_someone_errors?lang=en">Jalpresh Tailor has found these messages to be misleading.</A> Generally, no one has the document open, but he checks anyway. Then he runs an "unlock agent" to clear the lock. He's posted the code for his agent.