Comment 26 for bug 138277

I tried adding gnome-settings-daemon to my GNOME Session (System - > Preferences -> Session), but that does not seem to have made any difference.

There's no reliable way for me to reproduce this bug. Instead, it happens randomly: sometimes when I launch a new application from my GNOME bar, sometimes when I do something within an already-running application (open a file dialog, ask XChat to connect to a server, etc).

Here's the tail end of my .xsession-errors
** (nm-applet:6912): WARNING **: <WARN> nma_dbus_init(): org.freedesktop.DBus.Error.NoServer raised:
 Failed to connect to socket /var/run/dbus/system_bus_socket: Connection refused

** (nm-applet:6912): WARNING **: <WARN> nma_dbus_init(): org.freedesktop.DBus.Error.NoServer raised:
 Failed to connect to socket /var/run/dbus/system_bus_socket: Connection refused

** (nm-applet:6912): WARNING **: <WARN> nma_dbus_init(): org.freedesktop.DBus.Error.NoServer raised:
 Failed to connect to socket /var/run/dbus/system_bus_socket: Connection refused

DBus connection has been lost, trackerd will now shutdown
** Message: Got disconnected from the session message bus; retrying to reconnect every 10 seconds

(nautilus:7134): nautilus-extension-gnome-mount-WARNING **: Cannot connect to system bus: org.freedesktop.DBus.Error.NoServer : Failed to connect to socket /var/run/dbus/system_bus_socket: Connection refused

(nautilus:7134): nautilus-extension-gnome-mount-WARNING **: Could not initialize hal context

seahorse nautilus module initialized
Initializing nautilus-share extension

** (gnome-panel:7137): WARNING **: Couldn't connect to system bus: Failed to connect to socket /var/run/dbus/system_bus_socket: Connection refused

** (gnome-panel:7137): CRITICAL **: dbus_g_connection_get_connection: assertion `gconnection' failed

** (nautilus:7134): WARNING **: Unable to add monitor: Operation not supported
Nautilus-Share-Message: Called "net usershare info" but it failed: 'net usershare' returned error 255: net usershare: cannot open usershare directory /var/lib/samba/usershares. Error No such file or directory
Please ask your system administrator to enable user sharing.

Perhaps more annoyingly, when this happens I am unable to browse the contents of my home directory. I can click on Places->Desktop, Places->Documents, Places->Music, etc; but clicking on Places->Home Folder gives me an empty window and a spinning cursor. The same situation holds true for any "File Open" dialog: I can't see the contents of my home directory.