CORBA configurations

Hi,

I was trying to run a server which uses the naming service to communicate with the client.........some how.......I receive this run-time error:

Stock server error: org.omg.CORBA.ORBPackage.InvalidName
org.omg.CORBA.ORBPackage.InvalidName
at com.inprise.vbroker.orb.ORB.resolve_initial_references(ORB.java:712)
at StockServer.main(StockServer.java:37)

So anyone of you can tell me what configuration I miss until this error occur when I try to use naming service in my server program???