How do I make my Mac stop responding to an Apple remote? I've got a MacBook running OS X 10.5 and an Apple TV sitting next to each other.  The remote for the Apple TV is being picked up by the MacBook.  I want it to only control the Apple TV.
OS X 10.5: Go to Security in System Preferences.app, then select Disable remote control infrared receiver at the bottom.

newer versions of OS X: Go to Security and Privacy in System Preferences.app, then click on Advanced at the bottom and select Disable remote control infrared receiver.