HTTP + SVN + AD

Hi all.
I have apache2 + svn 1.6. If I use SVN with local user it's all ok but
when I try to integrated with Active Directory I have weird issue.
With my account (with AD username and password) I have access with no prob.
Others can't access it at all. Below is the subversion.conf that I am using.
I have also tried to change my password on AD and still having access
with the new password. Others in the ldap-group still not having
access at all.

What am I missing? Any clue?

Thanks heaps for any info

Regards

<snip> subversion.conf
----------------------------------------------------------------------------------------------
 <Location /svn>
        DAV svn
        SVNParentPath /svn
        Require valid-user
        AuthType Basic
        AuthName "New SVN Server"
        AuthzSVNAccessFile /svn/Config/svn-auth.security
##### File/local access
# AuthUserFile /svn/Config/svn-auth.htpasswd
#####
##### LDAP/AD access
# AuthzLDAPAuthoritative on
        AuthBasicProvider ldap
       AuthLDAPURL
"ldap://xxxxxxxxxxxxxxxxxxxxxxx:3268/dc=xxx,dc=xxx,dc=xxx,dc=xxx?sAMAccountName"
NONE
        AuthLDAPBindDN "CN=msvndev01,OU=Unix
Servers,DC=xxx,DC=xxx,DC=xxx,DC=xxx"
        AuthLDAPBindPassword "xxxxxxxxxxxxxxxxx"
       Require ldap-group cn=RT-SVN-Administrators-DL,ou=Application
Tasks,ou=Infrastructure Access,ou=Resource Access
Groups,dc=xxx,dc=xxx,dc=xxx,dc=xxx

-- 
Alfredo