For some strange reason, some icons in the System Menu were missing after I did a clean install of Ubuntu 10.10 Maverick Meerkat. It’s a bit annoying but there’s a really easy fix for this minor inconvenience.
Hit Alt+F2, type in gconf-editor in the Run application. This would open the Configuration Editor. Navigate to the following: “desktop -> gnome -> interface” and simply click on the check-box behind “menus_have_icons” in the right pane.
Click on your System Menu again and voila! The respective icons have now been restored. Easy right?