Ubuntu 11.10 Oneiric Enable Alt+F2 Run Command Prompt

In Ubuntu 11.10 Oneiric, the original Alt+F2 run a command box is disabled.

To enable it, click on your user account and select System Settings. Then choose Keyboard, at Shortcuts tab click System and you will see following picture. By default “Show the run command prompt” is disabled. Double click on it and set to Alt+F2.