After installing the extensions, you may experience a white screen of death when attempting to login. This is normally due to PHP not loading the LDAP extension. Look at PHP LDAP Extension for further details.

If the PHP LDAP extension is installed, it could be a misconfiguration on the web server or a corrupt installation of JMapMyLDAP. Try to download and install JMapMyLDAP again. If the problem persists, then post to the JMapMyLDAP forum thead.