I've broken my installation

Hello, I had a working openldap installation that I was developing some PHP to manage. I'm using the ldap_bind PHP call without username & password, so it is an anonymous bond.

I decided to have a clean install to verify everything was ok, so copied my ldap config files, and reinstall on a clean system.

the problem is that now the anonymous bind will not work. I turned on all debugging, and found the entry:

... do_bind: v3 anonymous bind

in the log. I'm guessing this means that anonymous bind is enabled, but still my PHP code will not bind. I'm not sure where to start to look for the problem. Could someone please point me in the right direction. I can supply logs and configs once I know where to look and what to send.

Many thanks,

Stuart