[horde] LDAP problem

[Marcelo Franklin]

Hi list,
    I'm trying to setup Horde (3.1.4)+ IMP (h3-4.1.4) to authenticate in 
Ldap server, but I've some problems. In horde logs appear this message:

Aug 10 14:06:00 HORDE [error] [horde] Bad search filter [on line 142 of 
"/usr/local/htdocs/horde/lib/Horde/Auth/ldap.php"]
Aug 10 14:06:00 HORDE [error] [horde] FAILED LOGIN for adm [SERVER IP] 
to Horde [on line 116 of "/usr/local/htdocs/horde/login.php"]

    Below is my conf.php:

<?php
/* CONFIG START. DO NOT CHANGE ANYTHING IN OR AFTER THIS LINE. */
// $Horde: horde/config/conf.xml,v 1.74.2.48 2007/02/02 11:03:05 jan Exp $
$conf['debug_level'] = E_ALL;
$conf['max_exec_time'] = 0;
$conf['compress_pages'] = true;
$conf['umask'] = 077;
$conf['use_ssl'] = 2;
$conf['server']['name'] = $_SERVER['SERVER_NAME'];
$conf['server']['port'] = $_SERVER['SERVER_PORT'];
$conf['session']['name'] = 'Horde';
$conf['session']['use_only_cookies'] = true;
$conf['session']['cache_limiter'] = 'nocache';
$conf['session']['timeout'] = 0;
$conf['cookie']['domain'] = $_SERVER['SERVER_NAME'];
$conf['cookie']['path'] = '/horde';
$conf['sql']['phptype'] = false;
$conf['auth']['admins'] = array('admin');
$conf['auth']['checkip'] = true;
$conf['auth']['checkbrowser'] = true;
$conf['auth']['alternate_login'] = false;
$conf['auth']['redirect_on_logout'] = false;
$conf['auth']['params']['hostspec'] = 'my.host.FQDN';
$conf['auth']['params']['basedn'] = 'ou=MailUsers,o=Example,c=BR';
$conf['auth']['params']['binddn'] = 'cn=ldapadm,c=BR';
$conf['auth']['params']['password'] = 'foo';
$conf['auth']['params']['version'] = '3';
$conf['auth']['params']['ad'] = false;
$conf['auth']['params']['uid'] = '';
$conf['auth']['params']['encryption'] = 'plain';
$conf['auth']['params']['newuser_objectclass'] = array('shadowAccount', 
'inetOrgPerson');
$conf['auth']['params']['objectclass'] = array('uid');
#$conf['auth']['params']['filter_type'] = 'objectclass';
$conf['auth']['params']['filter_type'] = 'uid';
$conf['auth']['params']['password_expiration'] = 'no';
$conf['auth']['driver'] = 'ldap';
$conf['signup']['allow'] = false;
$conf['log']['priority'] = PEAR_LOG_NOTICE;
$conf['log']['ident'] = 'HORDE';
$conf['log']['params'] = array();
$conf['log']['name'] = '/tmp/horde.log';
$conf['log']['params']['append'] = true;
$conf['log']['type'] = 'file';
$conf['log']['enabled'] = true;
$conf['log_accesskeys'] = false;
$conf['prefs']['params']['hostspec'] = 'my.host.FQDN';
$conf['prefs']['params']['port'] = 389;
$conf['prefs']['params']['version'] = '3';
$conf['prefs']['params']['basedn'] = 'c=BR';
$conf['prefs']['params']['fetchdn'] = false;
$conf['prefs']['params']['rootdn'] = 'cn=ldapadm,c=BR';
$conf['prefs']['params']['password'] = 'foo';
$conf['prefs']['params']['uid'] = 'uid';
$conf['prefs']['driver'] = 'ldap';
$conf['datatree']['driver'] = 'null';
$conf['group']['driver'] = 'datatree';
$conf['cache']['default_lifetime'] = 1800;
$conf['cache']['params']['dir'] = Horde::getTempDir();
$conf['cache']['params']['gc'] = 86400;
$conf['cache']['driver'] = 'file';
$conf['token']['driver'] = 'none';
$conf['mailer']['params']['sendmail_path'] = '/usr/lib/sendmail';
$conf['mailer']['params']['sendmail_args'] = '-oi';
$conf['mailer']['type'] = 'sendmail';
$conf['vfs']['params']['vfsroot'] = '/tmp';
$conf['vfs']['type'] = 'file';
$conf['sessionhandler']['type'] = 'none';
$conf['problems']['email'] = 'postmaster at my.host.FQDN';
$conf['problems']['maildomain'] = 'my.host.FQDN';
$conf['problems']['tickets'] = false;
$conf['menu']['apps'] = array();
$conf['menu']['always'] = false;
$conf['menu']['links']['help'] = 'all';
$conf['menu']['links']['help_about'] = true;
$conf['menu']['links']['options'] = 'authenticated';
$conf['menu']['links']['problem'] = 'all';
$conf['menu']['links']['login'] = 'all';
$conf['menu']['links']['logout'] = 'authenticated';
$conf['hooks']['permsdenied'] = false;
$conf['hooks']['username'] = false;
$conf['hooks']['preauthenticate'] = false;
$conf['hooks']['postauthenticate'] = false;
$conf['hooks']['authldap'] = false;
$conf['portal']['fixed_blocks'] = array();
$conf['accounts']['driver'] = 'null';
$conf['imsp']['enabled'] = false;
$conf['kolab']['enabled'] = false;
/* CONFIG END. DO NOT CHANGE ANYTHING IN OR BEFORE THIS LINE. */
?>


    What I done wrong? Someone could help me?
    Thanks in advance