THANKZ VERY MUCH :) anonymous wrote : The mysql-jdbc2-service.xml appears to be the culprit. As far as i know, this file does not come by default in the JBoss installation. Did your application put in this file at this location? Yes it came with the default installation of JBOSS-4.0.4.GA on NB 5.5 Beta 2 JBOSS Bundle. I deleted "hssqldb-jdbc2-service.xml" so as not to cause conflict with my MySQL connection anonymous wrote : Undo this. Place the hsqldb-jdbc2-service.xml back into the jms folder. I restored the "hsqldb-jdbc2-service.xml" and replace it with "mysql-jdbc2-service.xml". I then restarted the server all is fine except for one error.. --MBEANS THAT ARE THE ROOT CAUSE OF THE PROBLEM -- | Object name: jboss.jca:service=DataSourceBinding,name =DefaultDS | State: NOTYETINSTALLED | Depends on me: | jboss.ejb:service=EJBTimerService,persistencePolicy-database | jboss.mq:service=StateManager | jboss.mq:service=PersistenceManager Following the instructions on the link you gave me on http://wiki.jboss.org/wiki/Wiki.jsp?page=SetUpAMysqlDatasource I just changed the "<jndi-name>MySqlDS</jndi-name>" tags in mysql-ds.xml to "<jndi-name>DefaultDS</jndi-name>". I then restarted the server and all if fine.. No Long line of errors.. I thank you for all your help.. :).. I hope peopl with similar problems will find this forum. THANK YOU SO MUCH FOR THE HELP :) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3976860#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...