Hello, i tested the new JBoss Portal 2.4 release on a linux box. But there i get the same error message: The management portlet's title is: An error occured while rendering window 'default.Admin.ManagementPortletWindow' and the portlet's content is: WEB-INF/jsp/management/index.xhtml @41,58 rendered="#{!empty node.children}": org.jboss.portal.core.portlet.management.LazyPortalObjectTreeNode Best regards, Alexander View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3966401#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...