Hi, I will to migrate my 2.4.3 application to 3.0.4. As database I am using postgreSQL. I do not have any problems with 2.4.3 version. For 3.0.4 I got the example services.xml for postgres, changed the db server ip and stared the application. It is very simple: sessin bea making direct connection to db pool and executing query. The problem: If I try to open transaction (by connection.autocommit(false)) I receive one error from jboss: "Can not make commit or setAutoCommit". I am using jboss.jca:service=LocalTxDS.