Reassigning to gnome-settings-daemon (I think this is the correct
package, correct me if I'm wrong).
** Package changed: banshee (Ubuntu) = gnome-settings-daemon (Ubuntu)
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Ctrl+Alt+Delete should launch task manager
https://bugs.launchpad.net/bugs/537260
You received this bug notification
Thank you for your bug report. Historically, CTRL+ALT+DEL is already
used on a console to reboot the machine. To make things consistent, the
keybinding is already mapped in GNOME to raise the shutdown dialog.
** Changed in: gnome-settings-daemon (Ubuntu)
Importance: Undecided = Wishlist
**