Rebecca, I ve running with success omniORB 2.7.0 on Linux and Solaris together with Orbix 2.2MT on Solaris with the omniNames Naming Service. (see in the archives for this). Orbix 2.3 has some bugs and is not Corba Compliant in the object references. I don't know if there are patches for this or not. Brecht Vermeulen