I've setup an Samba2.2/OpenLDAP-2.1.5 PDC as described very well here: http://www.unav.es/cti/ldap-smb/ldap-smb-2_2-howto.html I've created a machine account, and a local user account. Using a Win2k box (signandseal=0) I can browse my domain and see the SambaPDC. I can login to the PDC shares using the local user account I created. My problem is the machine won't add to the domain. I presume I use the Administrator account for this ? so I've set a password on this account using ldappasswd -x -D 'cn=root,o=smb,dc=my,dc=com' -w "mysecret" -S 'uid=Administrator,o=smb,dc=my,dc=com' ? Yet whenever I try to add the test machine to the test domain as Administrator I get: Unknown Username or Bad Password. Any ideas what I've missed? Paul