Make sure you copy the postgresql-8.2-504.jdbc3.jar to the server\default\lib folder John View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4025176#4025176 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4025176