[FreeNX-kNX] Call to bind failed for font TCP port 12000

[Neal Becker]

server:
freenx-server-0.7.3-12.fc11.x86_64
nx-3.2.0-32.fc11.x86_64

client:
nxclient-3.3.0-6.x86_64

I can connect to 1 server, but simultaneous connect to 2 servers fails:

NXPROXY - Version 3.3.0

Copyright (C) 2001, 2007 NoMachine.
See http://www.nomachine.com/ for more information.

Info: Proxy running in client mode with pid '20092'.
Session: Starting session at 'Tue Jun 30 10:26:17 2009'.
Info: Connection with remote proxy completed.
Warning: Unrecognized session type 'unix-gnome'. Assuming agent session.
Error: Call to bind failed for font TCP port 12000. Error is 98 'Address 
already in use'.
Session: Session terminated at 'Tue Jun 30 10:26:17 2009'.