[horde] Problems authenticating with LDAP

[Nicolas Fo]

Hello everyone !

I've just installed horde.

My configuration :
- Debian 6.0.5 x86
- Installed Horde using PEAR (and all dependancies)
- Windows server 2008 R2

I'd like to authenticate with my LDAP server (AD). When I configure 
everything in administration page, then I generate the conf.php file, I 
must be redirected to the login page, but I've a blank page instead.
When I try an authentication with htaccess (for example) it works fine 
(I know there's nothing in common).

I created an user named "horde" in the OU named "testhorde".

So, here's my configuration :
$conf['auth']['params']['hostspec'] = 'IP_OF_AD_SERVER';
$conf['auth']['params']['tls'] = false;
$conf['auth']['params']['version'] = 3;
$conf['auth']['params']['binddn'] = 'dn=horde'; (don't works with 
"horde", "horde at mydomain.fr)
$conf['auth']['params']['bindpw'] = 'password_horde_user';
$conf['auth']['params']['bindas'] = 'admin';
$conf['auth']['params']['basedn'] = 'ou=testhorde.fr,dc=mydmain,dc=fr'; 
(don't works with "dc=mydmain,dc=fr")
$conf['auth']['params']['scope'] = 'sub';
$conf['auth']['params']['ad'] = true;
$conf['auth']['params']['uid'] = ' samaccountname';
$conf['auth']['params']['encryption'] = 'crypt-des';
$conf['auth']['params']['newuser_objectclass'] = array('shadowAccount', 
'inetOrgPerson');
$conf['auth']['params']['filter'] = '(objectclass=user)';
$conf['auth']['params']['password_expiration'] = 'no';
$conf['auth']['params']['driverconfig'] = 'custom';
$conf['auth']['driver'] = 'ldap';
$conf['auth']['params']['count_bad_logins'] = false;
$conf['auth']['params']['login_block'] = false;
$conf['auth']['params']['login_block_count'] = 5;
$conf['auth']['params']['login_block_time'] = 5;

Nothing in the log, even in "debug" mode, look like "frozen" when 
conf.php is generated... don't understand...

Any have an idea ?

Thanks a lot

Nicolas