Apple does some silly things sometimes, such as removing the monitor resolution choices from the Display menu in the menu bar in Mountain Lion. Now the only things this once-useful menu item does is give you quick access to the Display preference pane, or list mirroring options when you have multiple monitors connected to your Mac.
Luckily for those of us who just need the old Display menu's capabilities, Thorsten Karrer recreated the missing functionality in a free utility appropriately called Display Menu.
Display Menu supports multiple displays. It shows available resolutions for all attached displays, as well as all mirroring options. And yes, you can also use Display Menu to launch the Display preference pane.
If you would like to get back a bit of functionality that Apple forgot to include with Mountain Lion, take a look at Display Menu.
Display Menu is free.
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