Where do I correctly reference which FaceletViewHandler if I want to use trinidad and ajax4jsf? I already have <context-param> | <param-name>org.apache.myfaces.trinidad.ALTERNATE_VIEW_HANDLER</param-name> | <param-value>com.sun.facelets.FaceletViewHandler</param-value> | </context-param> For ajax4jsf in the example, a special ViewHandler is configured as <context-param> | <param-name>org.ajax4jsf.VIEW_HANDLERS</param-name> | <param-value>org.jboss.seam.ui.facelet.SeamFaceletViewHandler</param-value> | </context-param> May I combine both params? With Seam 1.0.1 I manually added the ajax4jsf Filter and did not specify the FaceletViewHandler there - it worked. Now I'm just upgrading to Seam 1.1.0-BETA. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3981334#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...