ALt+ Right Click

I Have Ubuntu 11.10 Alpha (yes I know this is an unstable Version) It is the only modern Ubuntu that runs on my machine. Anyways whenever I press Alt + Right Click A menu comes up. How do I turn this menu off?

On 10.10 it is System -> Preferences -> Windows

Change the ‘Movement Key’ from Alt to Super

I don’t know where this menu is on 11.10 though…

If you can’t find it, ALT+SHIFT+RMB does something similar