Comment 3 for bug 99156

It was gnome-session! This is the /home/forger/.gnome2/session:
[Default]
0,id=117f000101000117528882300000076030000
0,RestartStyleHint=1
0,Program=update-notifier
0,CurrentDirectory=/home/forger
0,CloneCommand=update-notifier
0,RestartCommand=update-notifier --sm-client-id 117f000101000117528882300000076030000 --screen 0
1,id=117f000101000117528882300000076030001
1,Program=gnome-power-manager
1,CurrentDirectory=/home/forger
1,CloneCommand=gnome-power-manager
1,RestartCommand=gnome-power-manager --sm-client-id 117f000101000117528882300000076030001 --screen 0
2,id=117f000101000117536632300000122270000
2,RestartStyleHint=0
2,Program=evolution-alarm-notify
2,CurrentDirectory=/home/forger
2,CloneCommand=evolution-alarm-notify
2,RestartCommand=evolution-alarm-notify --sm-client-id 117f000101000117536632300000122270000 --screen 0
3,id=117f000101000117536632400000122270001
3,Program=evolution-exchange
3,CurrentDirectory=/
3,CloneCommand=evolution-exchange
3,RestartCommand=evolution-exchange --sm-client-id 117f000101000117536632400000122270001 --screen 0
4,RestartCommand=/usr/lib/control-center/gnome-settings-daemon
5,RestartCommand=gnome-volume-manager --sm-disable
6,RestartCommand=restricted-manager --check
7,RestartCommand=/usr/lib/evolution/2.10/evolution-alarm-notify
8,RestartCommand=nm-applet --sm-disable
num_clients=9

[Failsafe]
0,id=117f000101000117536636500000124050000
0,RestartStyleHint=2
0,Priority=40
0,Program=nautilus
0,CurrentDirectory=/home/forger
0,CloneCommand=nautilus
0,RestartCommand=nautilus --sm-client-id 117f000101000117536636500000124050000 --screen 0
1,id=117f000101000117536636500000124050001
1,RestartStyleHint=1
1,Priority=40
1,Program=gnome-volume-manager
1,CurrentDirectory=/home/forger
1,CloneCommand=gnome-volume-manager
1,RestartCommand=gnome-volume-manager --sm-client-id 117f000101000117536636500000124050001 --screen 0
2,id=117f000101000117536636500000124050002
2,RestartStyleHint=2
2,Priority=40
2,Program=gnome-panel
2,CurrentDirectory=/home/forger
2,CloneCommand=gnome-panel
2,RestartCommand=gnome-panel --sm-client-id 117f000101000117536636500000124050002 --screen 0
3,id=117f000101000117536636700000124050003
3,RestartStyleHint=2
3,Priority=20
3,Program=metacity
3,CurrentDirectory=/home/forger
3,DiscardCommand=rm -f /home/forger/.metacity/sessions/1175366375-12444-1202444034.ms
3,CloneCommand=metacity
3,RestartCommand=metacity --sm-save-file 1175366375-12444-1202444034.ms
4,id=117f000101000117536637400000124050004
4,RestartStyleHint=0
4,Program=evolution-alarm-notify
4,CurrentDirectory=/home/forger
4,CloneCommand=evolution-alarm-notify
4,RestartCommand=evolution-alarm-notify --sm-client-id 117f000101000117536637400000124050004 --screen 0
5,id=117f000101000117536637400000124050005
5,RestartStyleHint=2
5,Priority=50
5,Program=gnome-cups-icon
5,CurrentDirectory=/home/forger
5,CloneCommand=gnome-cups-icon
5,RestartCommand=gnome-cups-icon --sm-client-id 117f000101000117536637400000124050005 --screen 0
6,id=117f000101000117536637400000124050006
6,Program=gnome-power-manager
6,CurrentDirectory=/home/forger
6,CloneCommand=gnome-power-manager
6,RestartCommand=gnome-power-manager --sm-client-id 117f000101000117536637400000124050006 --screen 0
7,id=117f000101000117536637500000124050007
7,Program=evolution-exchange
7,CurrentDirectory=/
7,CloneCommand=evolution-exchange
7,RestartCommand=evolution-exchange --sm-client-id 117f000101000117536637500000124050007 --screen 0
8,id=117f000101000117536637500000124050008
8,Program=deskbar-applet
8,CurrentDirectory=/home/forger
8,CloneCommand=deskbar-applet
8,RestartCommand=deskbar-applet --sm-client-id 117f000101000117536637500000124050008 --screen 0
9,id=117f000101000117536637800000124050009
9,Program=gnome-terminal
9,CurrentDirectory=/home/forger
9,CloneCommand=gnome-terminal
9,RestartCommand=gnome-terminal --sm-client-id 117f000101000117536637800000124050009 --screen 0
10,id=117f000101000117536668100000124050012
10,Program=gedit
10,CurrentDirectory=/home/forger
10,CloneCommand=gedit
10,RestartCommand=gedit --sm-client-id 117f000101000117536668100000124050012 --screen 0
11,RestartCommand=restricted-manager --check
12,RestartCommand=/usr/lib/evolution/2.10/evolution-alarm-notify
13,RestartCommand=nm-applet --sm-disable
num_clients=14

I cleared all the properties under [Default] and now runs normally :) I don't know if that helps you find the bug... but it helped me login normally.