Trapping Crtl+Alt+Del

In some versions of ubuntu Crtl+Alt+Del doesn't work by default so to enable it you will need to do the following:

1) alt+F2 (run cmd) > gconf-editor
2) once the editor is open go to Apps>Metacity>Global Keybinds>Command_1 , right click and select edit value then type in Delete
3)Keybinding Commands > Command_1 in "value" type gnome-system-monitor.
4) Test & smile yaaay :-)