I think that the client can't find the directory on the jboss server to lookup the ejb. It needs to specify the url of the server and the factory to create an initial context.
Have you set up a jndi.properties file? Create one and put it in your classpath. Put the following in it:
java.naming.factory.initial=org.jnp.interfaces.NamingContextFactory
java.naming.provider.url=localhost:1099
java.naming.factory.url.pkgs=org.jboss.naming
rg.jnp.interfaces
[ May 28, 2002: Message edited by: jon boydell ]