Gavin,
Thanks for the reply.
I assume the data dir is /var/lib/ldap.
I deleted the newly created objectClass.bdb file and moved all the other
files from the /var/lib/ldap dir to some other dir, except for the DB_CONFIG.
I left that file in /var/lib/ldap.
service ldap start says ok and ok, but status still reported as stopped.
no files generated
What do your logs show?