Another clue: I have the following indicies in my slapd.conf: index entryUUID pres,eq index objectClass,cn,uid,uidNumber,gidNumber,memberUid pres,eq index sn subinitial If I remove the cn index, the approx search for a cn attrib yields the proper results (but takes a while). Kind regards, Martin. -- -- Dr MDT Evans, Computing Services, Queen Mary, University of London