I would like to reopen this bug as it remains on feisty (also present in edgy). I have this problem on all my machines (2 x86 laptops and 1 x64 desktop). The original poster described exactly my problem. I attach a screenshot of my setup. Feel free to contact me if testing is needed.

Thanks,

Claudio

claudio@sydney:~$ dpkg -l |grep ^ii | grep -i gnome |awk '{print $2,$3}'
abiword-plugins-gnome 2.4.6-1.1ubuntu2
app-install-data 0.3.30
bug-buddy 2.18.1-0ubuntu1
capplets-data 2.18.1-0ubuntu2
compiz-gnome 0.3.6-1ubuntu13
contact-lookup-applet 0.15-1build2
deskbar-applet 2.18.1-0ubuntu2
eog 2.18.1-0ubuntu1
evolution-webcal 2.10.0-0ubuntu1
file-roller 2.18.1-0ubuntu1
firefox-gnome-support 2.0.0.3+1-0ubuntu2
gconf2 2.18.0.1-0ubuntu1
gconf2-common 2.18.0.1-0ubuntu1
gdm 2.18.1-0ubuntu1
glade-gnome-3 3.2.0-0ubuntu1
gnochm 0.9.9-0ubuntu1
gnome-about 2.18.1-0ubuntu1
gnome-accessibility-themes 2.18.1-0ubuntu1
gnome-app-install 0.3.30
gnome-applets 2.18.0-0ubuntu1
gnome-applets-data 2.18.0-0ubuntu1
gnome-btdownload 0.0.25-1ubuntu1
gnome-cards-data 2.18.1-0ubuntu1
gnome-common 2.18.0-0ubuntu1
gnome-control-center 2.18.1-0ubuntu2
gnome-cups-manager 0.31-3ubuntu5
gnome-desktop-data 2.18.1-0ubuntu1
gnome-doc-utils 0.10.3-0ubuntu1
gnome-games 2.18.1-0ubuntu1
gnome-games-data 2.18.1-0ubuntu1
gnome-icon-theme 2.18.0-0ubuntu4
gnome-keyring 0.8.1-0ubuntu1
gnome-keyring-manager 2.18.0-0ubuntu1
gnome-mag 0.14.3-0ubuntu1
gnome-media 2.18.0-0ubuntu1
gnome-media-common 2.18.0-0ubuntu1
gnome-menus 2.18.0-0ubuntu3
gnome-mime-data 2.4.3-1
gnome-mount 0.5-2ubuntu8
gnome-netstatus-applet 2.12.1-0ubuntu3
gnome-nettool 2.18.0-0ubuntu1
gnome-orca 2.18.1-0ubuntu1
gnome-panel 2.18.1-0ubuntu3.1
gnome-panel-data 2.18.1-0ubuntu3.1
gnome-pilot 2.0.15-0.1ubuntu1
gnome-pilot-conduits 2.0.15-0.1ubuntu1
gnome-power-manager 2.18.2-0ubuntu3
gnome-screensaver 2.18.1-0ubuntu1
gnome-session 2.18.0-0ubuntu3
gnome-spell 1.0.7-1ubuntu2
gnome-system-monitor 2.18.1.1-0ubuntu1
gnome-system-tools 2.18.1-0ubuntu1
gnome-terminal 2.18.0-0ubuntu1
gnome-terminal-data 2.18.0-0ubuntu1
gnome-themes 2.18.1-0ubuntu1
gnome-user-guide 2.18.1-0ubuntu1
gnome-utils 2.18.0-0ubuntu2
gnome-volume-manager 2.17.0-0ubuntu2
gnome2-user-guide 2.16.1-0ubuntu1
gnomebaker 0.6.0-7ubuntu1
gparted 0.2.5-2ubuntu2
gstreamer0.10-gnomevfs 0.10.12-0ubuntu1
hwdb-client-gnome 0.6.10
language-pack-gnome-en 7.04+20070412
language-pack-gnome-en-base 7.04+20070412
language-pack-gnome-nl 7.04+20070412
language-pack-gnome-nl-base 7.04+20070412
libatspi1.0-0 1.18.1-0ubuntu1
libeel2-2 2.18.0.1-0ubuntu1
libgail-common 1.18.0-0ubuntu1
libgail-gnome-module 1.18.0-0ubuntu1
libgail18 1.18.0-0ubuntu1
libgconf2-4 2.18.0.1-0ubuntu1
libgda2-3 1.2.4-0ubuntu1
libgda2-common 1.2.4-0ubuntu1
libgdl-1-0 0.6.1-1
libgdl-1-common 0.6.1-1
libgnome-desktop-2 2.18.1-0ubuntu1
libgnome-keyring0 0.8.1-0ubuntu1
libgnome-mag2 0.14.3-0ubuntu1
libgnome-media0 2.18.0-0ubuntu1
libgnome-menu2 2.18.0-0ubuntu3
libgnome-pilot2 2.0.15-0.1ubuntu1
libgnome-speech3 0.4.11-0ubuntu1
libgnome-window-settings1 2.18.1-0ubuntu2
libgnome2-0 2.18.0-0ubuntu1
libgnome2-canvas-perl 1.002-1ubuntu2
libgnome2-common 2.18.0-0ubuntu1
libgnome2-perl 1.040-1
libgnome2-vfs-perl 1.060-1
libgnome2-wnck-perl 0.14-1
libgnome2.0-cil 2.16.0-0ubuntu5
libgnomebt0 0.8.0-0ubuntu4
libgnomecanvas2-0 2.14.0-3ubuntu2
libgnomecanvas2-common 2.14.0-3ubuntu2
libgnomecups1.0-1 0.2.2-5ubuntu1
libgnomecupsui1.0-1c2a 0.31-3ubuntu5
libgnomekbd-common 2.18.1-0ubuntu1
libgnomekbd1 2.18.1-0ubuntu1
libgnomekbdui1 2.18.1-0ubuntu1
libgnomeprint2.2-0 2.18.0-0ubuntu1
libgnomeprint2.2-data 2.18.0-0ubuntu1
libgnomeprintui2.2-0 2.18.0-0ubuntu1
libgnomeprintui2.2-common 2.18.0-0ubuntu1
libgnomescan-common 0.4.0.4-0ubuntu1
libgnomescan0 0.4.0.4-0ubuntu1
libgnomeui-0 2.17.92-0ubuntu1
libgnomeui-common 2.17.92-0ubuntu1
libgnomevfs2-0 2.18.1-0ubuntu1
libgnomevfs2-bin 2.18.1-0ubuntu1
libgnomevfs2-common 2.18.1-0ubuntu1
libgnomevfs2-extra 2.18.1-0ubuntu1
libpam-keyring 0.0.8-5
libpanel-applet2-0 2.18.1-0ubuntu3.1
libslab0 2.18.1-0ubuntu2
libxml-libxml-perl 1.59-2build1
libxml1 1.8.17-14build1
libxml2 2.6.27.dfsg-1ubuntu3
listen 0.5-0ubuntu3
nautilus 2.18.1-0ubuntu1
network-manager-gnome 0.6.4-6ubuntu7
openoffice.org-gnome 2.2.0-1ubuntu3
python-gnome2 2.18.0-0ubuntu1
python-gnome2-desktop 2.18.0-0ubuntu3
python-gnome2-extras 2.14.3-0ubuntu1
python-gnomecanvas 2.18.0-0ubuntu1
python-libxml2 2.6.27.dfsg-1ubuntu3
rhythmbox 0.10.0-0ubuntu2
seahorse 1.0.1-0ubuntu1
sound-juicer 2.16.3-0ubuntu2
ssh-askpass-fullscreen 0.3-2
ssh-askpass-gnome 4.3p2-8ubuntu1
staroffice-gnome-integration 8.0.3-8
starsuite-gnome-integration 8.0.6-9135
totem 2.18.1-0ubuntu3
totem-gstreamer 2.18.1-0ubuntu3
ubuntu-sounds 0.6
update-manager 0.59.20
vino 2.18.1-0ubuntu1
yelp 2.18.1-0ubuntu2