Client
NX> 105 Start session with: --virtualdesktop="1" --application="gnome-session\04520--session\0453Dubuntu-2d" --link="adsl" --backingstore="1" --encryption="1" --cache="16M" --images="64M" --shmem="1" --shpix="1" --strict="0" --composite="1" --media="0" --session="mIRC" --type="unix-application" --geometry="1914x1012" --client="winnt" --keyboard="pc102\057gb" --screeninfo="1914x1012x32+render"
NX> 595 ERROR: A fatal error occurred in NX Server.
NX> 595 ERROR: The exception id is: C9D37089. To get detailed information about
NX> 595 ERROR: the error search for the string C9D37089 in the system log
NX> 595 ERROR: file (usually '/var/log/messages').
NX> 500 ERROR: Last operation failed.
NX> 280 Exiting on signal: 15

Server Log
$
Jan  6 21:39:51 server1 NXSERVER-3.5.0-11[830]: ERROR: (exception id C9D37089) NX> 596 ERROR: NXNODE Ver. 3.5.0-9  (Error id e9E9B61)
Jan  6 21:39:51 server1 NXSERVER-3.5.0-11[830]: ERROR: (exception id C9D37089) NX> 596 ERROR: create session: run commands
Jan  6 21:39:51 server1 NXSERVER-3.5.0-11[830]: ERROR: (exception id C9D37089) NX> 596 ERROR: execution of last command failed
Jan  6 21:39:51 server1 NXSERVER-3.5.0-11[830]: ERROR: (exception id C9D37089) NX> 596 last command: /bin/bash -c 'exec -a - /bin/sh -c '\''xauth -v -f /home/Sunny/.nx/C-server1-1008-E96DFF2072BADA8E44F405EC111D5CB7/authority source /ho$
Jan  6 21:39:51 server1 NXSERVER-3.5.0-11[830]: ERROR: (exception id C9D37089) NX> 596 exit value: 127
Jan  6 21:39:51 server1 NXSERVER-3.5.0-11[830]: ERROR: (exception id C9D37089) NX> 596 stdout:
Jan  6 21:39:51 server1 NXSERVER-3.5.0-11[830]: ERROR: (exception id C9D37089) NX> 596 stderr: -: 1: xauth: not found
Jan  6 21:39:51 server1 NXSERVER-3.5.0-11[830]: ERROR: (exception id C9D37089) NX> 596 init: stdin arguments: user=Sunny,userip=86%2e169%2e50%2e208,uniqueid=E96DFF2072BADA8E44F405EC111D5CB7,display=1008,node_number=0,server_name=server1$
Jan  6 21:39:51 server1 NXSERVER-3.5.0-11[830]: ERROR: (exception id C9D37089) NXNodeExec::exec('startsession', 'user=Sunny&userip=86%2e169%2e50%2e208&uniqueid=E96DFF2072BADA8E4...', 'localhost', 22) called at handlers/nxserver.pl line $
Jan  6 21:39:51 server1 NXSERVER-3.5.0-11[830]: ERROR: (exception id C9D37089) NXShell::handler_session_start('--virtualdesktop="1" --application="gnome-session%20--session%3D...') called at NXShell.pm line 373
Jan  6 21:39:51 server1 NXSERVER-3.5.0-11[830]: ERROR: (exception id C9D37089) NXShell::handle_command('startsession', '--virtualdesktop="1" --application="gnome-session%20--session%3D...') called at NXShell.pm line 145
Jan  6 21:39:51 server1 NXSERVER-3.5.0-11[830]: ERROR: (exception id C9D37089) NXShell::run() called at nxserver.pl line 4497
Jan  6 21:39:51 server1 NXSERVER-3.5.0-11[830]: ERROR: (exception id C9D37089) eval {...} called at nxserver.pl line 4456