Although I am not sure about the rootcause and remedy of the problem that you posted, we may try the workaround that I did for one such CORBA related problems in starting the J2EE server.
(*) Edit the file <J2EE_HOME>/config/orb.properties
(*) Modify the value of the port i.e,
change port=1050 to port=1055 Please let me know, if this solves your problem.
