Hello,

I have the same problem in 9.10. The session reloads.
During this problem, i used gajim 0.12.5, firefox 3.5.5 and emesene 1.5.

{
tail -n2 /var/log/user.log
Nov 23 22:36:32 jarvis-desktop bonobo-activation-server (jarvis-3787): could not associate with desktop session: Failed to connect to socket /tmp/dbus-AZhhDGwef1: Connexion refusée
Nov 23 22:36:40 jarvis-desktop pulseaudio[3898]: pid.c: Stale PID file, overwriting.
}

{
/var/log/syslog :
Nov 23 22:36:27 jarvis-desktop nm-dispatcher.action: Script '/etc/NetworkManager/dispatcher.d/01ifupdown' exited with error status 1.
Nov 23 22:36:28 jarvis-desktop acpid: client connected from 3669[0:0]
Nov 23 22:36:32 jarvis-desktop bonobo-activation-server (jarvis-3787): could not associate with desktop session: Failed to connect to socket /tmp/dbus-AZhhDGwef1: Connexion refusée
Nov 23 22:36:35 jarvis-desktop gdm-simple-greeter[3778]: WARNING: Unable to lookup user name d: Succès
Nov 23 22:36:40 jarvis-desktop pulseaudio[3898]: pid.c: Stale PID file, overwriting.
Nov 23 22:36:44 jarvis-desktop gnome-session[3831]: WARNING: Could not launch application 'gnome-do.desktop': Unable to start application: L'exécution du processus fils « gnome-do » a échoué (Aucun fichier ou dossier de ce type)
}

It's the second time i have this problem :
{
Nov 20 19:12:12 jarvis-desktop bonobo-activation-server (jarvis-3528): could not associate with desktop session: Failed to connect to socket /tmp/dbus-Vvk3NmEnOR: Connexion refusée
Nov 20 19:12:28 jarvis-desktop pulseaudio[3761]: pid.c: Stale PID file, overwriting.
}

{
uname -a
Linux jarvis-desktop 2.6.31-14-generic #48-Ubuntu SMP Fri Oct 16 14:04:26 UTC 2009 i686 GNU/Linux
}

{
lspci 
00:00.0 RAM memory: nVidia Corporation MCP61 Memory Controller (rev a1)
00:01.0 ISA bridge: nVidia Corporation MCP61 LPC Bridge (rev a2)
00:01.1 SMBus: nVidia Corporation MCP61 SMBus (rev a2)
00:01.2 RAM memory: nVidia Corporation MCP61 Memory Controller (rev a2)
00:02.0 USB Controller: nVidia Corporation MCP61 USB Controller (rev a2)
00:02.1 USB Controller: nVidia Corporation MCP61 USB Controller (rev a2)
00:04.0 PCI bridge: nVidia Corporation MCP61 PCI bridge (rev a1)
00:05.0 Audio device: nVidia Corporation MCP61 High Definition Audio (rev a2)
00:06.0 IDE interface: nVidia Corporation MCP61 IDE (rev a2)
00:07.0 Bridge: nVidia Corporation MCP61 Ethernet (rev a2)
00:08.0 IDE interface: nVidia Corporation MCP61 SATA Controller (rev a2)
00:08.1 IDE interface: nVidia Corporation MCP61 SATA Controller (rev a2)
00:09.0 PCI bridge: nVidia Corporation MCP61 PCI Express bridge (rev a2)
00:0b.0 PCI bridge: nVidia Corporation MCP61 PCI Express bridge (rev a2)
00:0c.0 PCI bridge: nVidia Corporation MCP61 PCI Express bridge (rev a2)
00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration
00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control
02:00.0 VGA compatible controller: nVidia Corporation NV44 [GeForce 6200 TurboCache(TM)] (rev a1)
}