[FreeNX-kNX] Suddenly getting an error when starting up connection to FreeNX server

[John Lagrue]

Running NM client on FC5 connecting to server running on CentOS 4, I 
have been getting connection failure errors for the last couple of 
weeks; before that it was working fine.

There's nothing wrong with the authentication; it gets past all that. 
But the error seems to be that a session ID file isn't being created.

Does anyone have any ideas of what might be wrong, or where I can look 
further?

Here's the log :
-------------------------------------------------------------------------------------------------
NX> 203 NXSSH running with pid: 3398
NX> 285 Enabling check on switch command
NX> 285 Enabling skip of SSH config files
NX> 285 Setting the preferred NX options
NX> 200 Connected to address: 192.168.0.1 on port: 2222
NX> 202 Authenticating user: nx
NX> 208 Using auth method: publickey
HELLO NXSERVER - Version 1.5.0-50-SVN OS (GPL)
NX> 105 hello NXCLIENT - Version 1.5.0
NX> 134 Accepted protocol: 1.5.0
NX> 105 SET SHELL_MODE SHELL
NX> 105 SET AUTH_MODE PASSWORD
NX> 105 login
NX> 101 User: john
NX> 102 Password:
NX> 103 Welcome to: moray1 user: john
NX> 105 listsession --user="john" --status="suspended,running" 
--geometry="1400x1050x24+render" --type="unix-kde"
NX> 127 Sessions list of user 'john' for reconnect:

Display Type             Session ID                       Options  Depth 
Screen         Status      Session Name
------- ---------------- -------------------------------- -------- ----- 
-------------- ----------- ------------------------------


NX> 148 Server capacity: not reached for user: john
NX> 105 startsession  --link="lan" --backingstore="1" --nodelay="1" 
--encryption="1" --cache="8M" --images="32M" --media="0" 
--session="moray" --type="unix-kde" --geometry="1400x1017" 
--kbtype="pc105/gb" --screeninfo="1400x1017x24+render"

NX> 1000 NXNODE - Version 1.5.0-50-SVN OS (GPL)
NX> 700 Session id: moray1-1000-2B82D5E702D883198863E10D50A3EAFE
NX> 705 Session display: 1000
NX> 703 Session type: unix-kde
NX> 701 Proxy cookie: 79b81c15e0a37a7fd19b344f83377061
NX> 702 Proxy IP: 127.0.0.1
NX> 706 Agent cookie: 79b81c15e0a37a7fd19b344f83377061
NX> 704 Session cache: unix-kde
NX> 707 SSL tunneling: 1
NX> 105 /usr/bin/nxserver: line 1077: 25445 Terminated              
sleep $AGENT_STARTUP_TIMEOUT
NX> 596 Session startup failed.
NX> 1004 Error: NX Agent exited with exit status 1.
Can't open 
/var/lib/nxserver/db/running/sessionId{2B82D5E702D883198863E10D50A3EAFE}: 
No such file or directory.
mv: cannot stat 
`/var/lib/nxserver/db/running/sessionId{2B82D5E702D883198863E10D50A3EAFE}': 
No such file or directory
NX> 1006 Session status: closed
Killed by signal 15.