I use gnome-do a lot and usually I summon it using [Super] + [Space]. It works just fine on my desktop PC (Linux Mint 11) but on my new ThinkPad T420 (Linux Mint 13) it didn't work that well. I had to either tap super or space twice to open the gnome-do popup. I quickly realized that this was happening due to the keyboard shortcut for menu (super / windows button). I don't need the menu shortcut for anything.
I already checked in Preferences -> Keyboard -> Shortcuts but there was no such setting as "Menu" or "Start menu" or anything like that. Where can I disable the keyboard shortcut for menu?
On Cinnamon on Linux Mint 13 (Maya) the "Active the window menu" shortcut (bound by default to Alt+Space) is under Menu -> Preferences -> Keyboard -> Shortcuts. Just click the relevant row to edit or disable the binding.