Hi Jonathan
I'm currently trying authenticating my moodle (1.9) against LDAP (Ms. Windows 2003), i don't get any error but i always get "Invalid login, please try again" every time i tried login.
this is my configuration :

LDAP server settings
--------------------
Host URL : ldap://10.100.70.5
Version : 3 (since i using win2k3 serv)
LDAP encoding : utf-8

Bind settings
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Hide passwords : No
Distinguished Name : CN=moodle,OU=ProgrammerOU,DC=xxx
Password : ***

User lookup settings
--------------------
User type : MS Active Dir
Contexts : ou=ProgrammerOU
Search subcontexts : Yes
Dereference aliases Choose... : No
User attribute : cn
Member attribute: [empty]
Member attribute uses dn : 0
Member attribute uses dn : [empty]

....

Course creator
--------------
Creators : OU=ProgrammerOU,DC=xxx

thanx before