Yesterday OHSTVMA's archive disk filled. A note of mine to MAILBOOK was among those that couldn't be archived due to the problem. Apparently LISTSERV held the notes until the problem was resolved. When the problem was resolved, LISTSERV seemed to think the notes were duplicates of notes already successfully processed and returned them to the authors. Does 1.6e take its checksum of a note before the note has been completely successfully processed? Apparently my note was neither logged nor distributed, but its checksum was noted so that it could be later rejected as a duplicate. Thanks, Nick