I am completely stumped and no one responded to my other post so I thought I would try again. I am using Sybase ASE 12.5 with the jconn2.jar driver. I am trying to run it through JBoss 4.0.1 I have the jar in the default/lib directory and can see that it does find the jar when I compile so that is not the problem. I then try to access my jsp via IE and get a NoClassDefFoundException: com.sybase.jdbc2.jdbc.SybDriver. That class is in the jconn2.jar file! I am not even using any connections beans but actually do it within the jsp directly. I want to get the connection working before complicating things. We are using the struts framework for our display but the datasource code is commented out in the struts-config.xml. Any ideas on what could be wrong. PLEASE HELP.