CORBA.COMM_FAILURE when deploying an EAR

[ptgo]

Hi, I am a complete WAS newbie so pardon any dumb questions... But when I try to deploy the supplied performance servlet (perfServletApp.ear) thru the Admin console's "Install Enterprise App" wizard, I get the following error. I am using WAS 4.0.1 Advanced Ed for Multiplatforms. Any clues or leads greatly appreciated!

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Exception:
java.rmi.ServerException: RemoteException occurred in server thread; nested exception is:
java.rmi.MarshalException: CORBA COMM_FAILURE 3 No; nested exception is:
org.omg.CORBA.COMM_FAILURE: minor code: 3 completed: Nojava.rmi.MarshalException: CORBA COMM_FAILURE 3 No; nested exception is:
org.omg.CORBA.COMM_FAILURE: minor code: 3 completed: Noorg.omg.CORBA.COMM_FAILURE: minor code: 3 completed: No
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