Remove OSX shortcut to switch between spaces (ctrl + number shortcut) On MacOsX Lion (upgrade from Leopard).
Working with some 3d application, I would like to temporarily turn off the shortcut ctrl + [numberOfSpace]. 

I went to:

 Preferences &gt; Keyboard &gt; Mission Control 


and unchecked every checkbox;
However, the shortcut is still active. I cannot find the place where it's defined.
I also tried 

Preferences &gt; Mission Control 


and unchecked all checkboxes in the bottom section, but the shortcut still works.
Is there a way to set/unset those shortcuts ?
Please check and uncheck accordingly 

Go to System Preferences > Keyboard > Shortcuts > Mission Control