Ldap login problem

Hi dudes,

I wanted to install ldap on my machine and I tried to do it based on this video:
Install and Configure an openLDAP Server - YouTube

I installed it and every thing went fine. but the problem is that when I create a ldap user, I cannot login to the user unless I am root!!!
when I have loged in whith a regular user and try to login a ldap user it doesnot accept the password. But as I said when I am root and I change the user to ldap user I can login and everything goes fine.

Please help me to understand whats wrong!!! I really nead a quick help here!!!

Thanks so much!!!