I recently upgraded from Ubuntu 12.04 to 12.10.
In 12.04, a title bar right-click would cause the menu to popup. After my upgrade right-click shades/unshades the window. I want the previous behavior, so I opened /apps/metacity/general in gconf settings, and saw that 'action_right_click_title_bar' was set to toggle-shade. I switched the value to 'menu', logged out, then logged back in. However, the behavior did not change. I verified that 'action_right_click_title_bar' was still 'menu' (it was). I also tried unsetting the key with no results.
How do I change the behavior to show the menu when the window title-bar is right-clicked?