Your precious Apple laptop has been stolen, and you are bereft and angry. But all may not be lost. If you have Find My Mac enabled on your MacBook you can track it, lock it, and even send an aural message to the oxygen waster who lifted your laptop. Here's how to trace a stolen MacBook. (See also: what to do if your Mac is stolen, and how to find it if it is.) How to enable Find My Mac on your MacBook First we'll tell you what to do before your MacBook is stolen (we're not saying it's going to be stolen, by the way, we have no inside knowl