I have this same bug. Screenshot: http://picasaweb.google.com/xburnerx/UbuntuLinuxScreenshots/photo#5051839240363084114 To reiterate, this only happens with Gnome regardless of login manager. I have KDE & XFCE installed as well which work just fine from either gdm or kdm. It happens on two desktops for me, but not my laptop anymore after a reinstall of Feisty. I've tried to isolate what triggers this to no avail. I know what doesn't trigger it. It's not: *related to nvidia card or binary drivers as I've seen this on an Intel i810 and an ATI Radeon 7500 Mobility using the ati driver *related to user preferences, as I've created a new user and wiped my ~/.* and the problem still exists It must be package related somewhere since when I reinstalled the Feisty Beta on my desktop, the problem was gone. I tried to be conservative about installing packages to isolate what caused the issue, but it just came back all of a sudden and I'm not sure what brought it. For the record, I have a desktop that only has gnome and xfce which the problem appears on. I have another desktop with KDE, Xfce, and Gnome on, but the problem occurred when it was only Gnome. Related bugs: *https://bugs.launchpad.net/ubuntu/+bug/89022 *https://bugs.launchpad.net/ubuntu/+source/gtk-qt-engine/+bug/83152 *https://bugs.launchpad.net/ubuntu/+source/gtk-qt-engine/+bug/66124 *https://bugs.launchpad.net/ubuntu/+source/control-center/+bug/61381 *https://bugs.launchpad.net/ubuntu/+source/control-center/+bug/84876 ~/.xsession-errors: --------------------------------------------------------------------------------- /etc/gdm/PreSession/Default: Registering your session with wtmp and utmp /etc/gdm/PreSession/Default: running: /usr/X11R6/bin/sessreg -a -w /var/log/wtmp -u /var/run/utmp -x "/var/lib/gdm/:0.Xservers" -h "" -l ":0" "burner" /etc/gdm/Xsession: Beginning session setup... SESSION_MANAGER=local/ymir:/tmp/.ICE-unix/12130 esd: Esound sound daemon already running or stale UNIX socket /tmp/.esd-1001/socket This socket already exists indicating esd is already running. Exiting... (gnome-session:12130): GLib-GObject-CRITICAL **: g_object_unref: assertion `G_IS_OBJECT (object)' failed Window manager warning: "" found in configuration database is not a valid value for keybinding "toggle_shaded" Initializing nautilus-open-terminal extension Initializing gnome-mount extension seahorse nautilus module initialized evolution-alarm-notify-Message: Setting timeout for 57697 1176357600 1176299903 evolution-alarm-notify-Message: Thu Apr 12 00:00:00 2007 evolution-alarm-notify-Message: Wed Apr 11 07:58:23 2007 (evolution-alarm-notify:12247): libecal-WARNING **: e-cal.c:318: Unexpected response alarm-notify.c:368 (alarm_notify_new) - Alarm Notify New alarm-notify.c:304 (alarm_channel_setup) - Channel Setup alarm-notify.c:243 (alarm_notify_init) - Initing Alarm Notify alarm-queue.c:1875 (alarm_queue_init) alarm-queue.c:218 (queue_midnight_refresh) - Refresh at Thu Apr 12 00:00:00 2007 alarm-notify.c:220 (load_calendars) - Loading Calendar file:///home/burner/.evolution/calendar/local/system alarm-notify.c:456 (alarm_notify_add_calendar) file:///home/burner/.evolution/calendar/local/system - Calendar Open Async... 0x80d02c0 alarm-notify.c:220 (load_calendars) - Loading Calendar contacts:/// alarm-notify.c:456 (alarm_notify_add_calendar) contacts:/// - Calendar Open Async... 0x80d0300 alarm-notify.c:220 (load_calendars) - Loading Calendar exchange://dburanen;