[FreeNX-kNX] nxclient connection error

[John Smith]

Hi,
I'm connecting from one ubuntu box to another. The server is running Freenx.
When I connect, this is the error:

NXPROXY - Version 1.5.0

Copyright (C) 2001, 2005 NoMachine.
See http://www.nomachine.com/ for more information.

Info: Proxy running in client mode with pid '28311'.
Warning: Connected to remote NXPROXY version 1.4.0 with local version 1.5.0.
Info: Synchronizing local and remote caches.
Info: Handshaking with remote proxy completed.
Info: Remote proxy doesn't support fake authentication.
Info: Forwarding the real X authorization cookie.
Info: Not using NX delta compression.
Info: Using lan link parameters 16384/8/0/0.
Info: Using pack method '16m-jpeg-9' with session 'unix-gnome'.
Info: Not using ZLIB stream compression.
Info: Not using remote ZLIB stream compression.
Info: Not using persistent cache.
Info: Starting X protocol compression.
Warning: X connection failed with error 'No protocol specified'.
Info: End of session requested by remote proxy.
Info: Shutting down the link and exiting.

What causes the "No protocol specified' error? Thanks
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