[xwiki-users] LDAP Logging Problem

Hi Guys, hopefully im doing right sending a mail to this list with my problem. Actually i got 2 Problems but if i can solve one the other will be gone :) One is die LDAP connection and the other is the debugging/logging function. Unfortunately i can't login with the AD users and i don't even know if there is a connection to the server. I wasted a day trying to get the debugging/logging enabled but it seems im to stupid for it :) enabled LDAP Debug Log with the log4j.properties file in WEB-INF/classes without success. log4j.logger.com.xpn.xwiki.plugin.ldap=trace log4j.logger.com.xpn.xwiki.user.impl.LDAP=trace but somehow i cant find a log or information about ldap. do i have to configure something else or add some information to the xwiki.cfg?! any help is appreciated. Systeminformation: CentOS 6.1 in a VM XWiki 3.3 Tomcat 5.5 Java 1.6 thanks and regards, Niko