This is a known issue for IE (as usual it is called a feature): http://support.microsoft.com/?id=316431 A work around is to disable cache control: http://wiki.jboss.org/wiki/Wiki.jsp?page=DisableCacheControl I solved my problem by adding a context.xml to JBOSS_HOME/server/default/deploy/jboss-portal.sar/portal-server.war/WEB-INF <Context> | <Valve className="org.apache.catalina.authenticator.FormAuthenticator" | disableProxyCaching="false" /> | </Context> Anette View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4044632#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...