In the Management Portlet, select the desired portlet window, click on the Theme link, and choose emptyRenderer for the various renderers. That will remove the borders for that portlet window. If you are defining the window in a *-object.xml file, you can use: <window> | <window-name>ThePortletWindow</window-name> | <instance-ref>ThePortletInstance</instance-ref> | <properties> | <property> | <name>theme.windowRendererId</name> | <value>emptyRenderer</value> | </property> | <property> | <name>theme.decorationRendererId</name> | <value>emptyRenderer</value> | </property> | <property> | <name>theme.portletRendererId</name> | <value>emptyRenderer</value> | </property> | </properties> | </window> | View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4046878#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...