FreeNX - client connects then (nothing)

[Bob Hartung]

Hi all,
   New F10 installed and running with all updates.
   FreeNX and NX installed from yum repository

   client:  Mac OS X with latest NoMachine client Version 3.3.0-3.
   client key installed.

   In manual mode from terminal, i can ssh into F10 server.

   When I start the client it appears to log in and authenticate, then 
just disappears.  X11 however is started.  The Gnome desktop does not 
appear.

   Open to suggestions.  i have tried to track down and read the docs 
but don't find this particular situation.

   TIA


   Bob