I was merely trying to be polite by asking if someone had got this working with MySQL, I wasn't trying to be rude. I was using MySQL 4.1.22, which is the version that is specified in the "mysql-persistence-service.xml", as well as the version specified on the wiki. (By the way, it seems the wiki (http://wiki.jboss.org/wiki/Wiki.jsp?page=JBossMessagingDatabaseCompatibil...) hasn't been updated since version 1.2.0.) I now tried upgrading to the lastest 5.0.45, and then it all suddenly worked.. I don't know the reason for this.. Maybe your testing wasn't as good as you thought? ;-) I don't really understand why you give me an attitude and tell me to RTFM, would it hurt to help a newbie out and actually take a look at the problem I had? Regards, Haagen View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4101389#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...