RMI: ClassCastException

[Dave Teare]

Hi all,
I have my RMI working perfectly fine for one of my projects, but when I tried creating a second class in a seperate project, I am getting a ClassCastException. I used my working code as a template, so I am fairly convinced I have the right class structure.
On the client I call Naming.lookup(rmiName), which correctly returns a FBNConnectionManager_Stub class, but when I attempt to cast this to a FBNConnectionManager object, I get a cast exception.
Any thoughts on why this might be happening? I have recompiled all my classes and re-rmic'd, and even rebooted my machine, but it still fails. What gives?
Thanks a million!
--Dave.