Ubuntu Jaunty Update Notifications
I just noticed that Jaunty changed the way that it notifies the user about updates. Rather than a notification in the systray, it displays the update-manager window automatically. To revert to the systray notification, you need to change a Gnome settings value using either gconftool on the command line or gconf-editor. Change the value /apps/update-notifier/auto_launch to false using one of these tools:
gconftool -s --type bool /apps/update-notifier/auto_launch false
