Ok so going around in circles here, if I make sure all my descriptors are like the portal example I get: | 12:34:31,503 ERROR [ControllerCommand] Rendering portlet window default.Data Stream Admin.DataStreamPresetPortletWindow triggered the following error : | java.lang.NullPointerException: serialFactory | at org.apache.myfaces.shared_impl.util.StateUtils.getAsByteArray(StateUtils.java:174) | at org.apache.myfaces.shared_impl.util.StateUtils.construct(StateUtils.java:150) | at org.apache.myfaces.renderkit.html.HtmlResponseStateManager.writeState(HtmlResponseStateManager.java:73) | at org.apache.myfaces.application.jsp.JspStateManagerImpl.writeState(JspStateManagerImpl.java:430) | at org.jboss.seam.jsf.SeamStateManager.writeState(SeamStateManager.java:53) | We are using facelets, could that be a problem? View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3980447#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...