After days of screwing up I have finally managed to get the example project "jpa" to run on Tomcat 5.5. No I want to change the database from the embedded hsqldb to postgres. I have tried everything already, but I'm still getting a whole lot errors. Would it be possible for someone to share a demo( for example the booking example) but with a postgres DB configured. It would help me out a lot. I'm trying to get JBoss Seam into my company as a default webframework standard, but at this rate, it will never happen (i've spent 4 days only to try to get this running on tomcat with a different database) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4079229#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...