Hi All, I just installed the DB2 7.2 for windows 2000 to my Computer, and I created a database called "BANKDB", also I created a Table, and I inserted some data to it. Then based on this table, I generated an entity EJB by using WSAD. Finally I want to test this entity Bean, I started the server, but found an error: "[10/18/02 16:54:48:978 EDT] 5569799d DataSourceFac X CONM1006E: The data source class name "COM.ibm.db2.jdbc.DB2ConnectionPoolDataSource" could not be found for data source (BANKDB). [10/18/02 16:54:49:228 EDT] 5569799d Helpers W NMSV0605E: A Reference object looked up from the context "domainRoots/UnspecifiedDomainName/legacyRoot" with the name "jdbc/BANKDB" was sent to the JNDI Naming Manager and an exception resulted. Reference data follows: Reference Factory Class Name: com.ibm.websphere.advanced.cm.factory.DataSourceFactory$ResourceReferenceObjectFactory Reference Factory Class Location URLs: <null> Reference Class Name: com.ibm.ejs.cm.portability.PortableDataSource ...... " Did anyone have this kind of problem, and do you know how to solve it? Thank you so much!