I just came across something peculiar where I found the registration example in Seam 1.1.0GA does not include jboss-seam-ui.jar. Can someone confirm this? I'm just thinking that I missed a step somewhere. I did an "ant" in seam root, then an "ant tomcat.deploy" in examples/registration. Got a ~16MB file that excludes jboss-seam-ui.jar. Got an exception when opening up the page stating the obvious: java.lang.NoClassDefFoundError: org/jboss/seam/ui/tag/ValidateAllTag | at org.apache.jsp.register_jspx._jspx_meth_s_validateAll_0(register_jspx | .java:158) | at org.apache.jsp.register_jspx._jspx_meth_h_form_0(register_jspx.java:1 | .. | Repeated instructions on a nightly jboss-seam-CVS.20070108. Got a ~18MB file that included jboss-seam-ui.jar (the extra 2MB was made up by the ui jar and itext). Example runs fine. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4000205#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...