More Mac 101, our ongoing series of tips and tricks for novice Mac users.
Adding Facebook integration to the OS X Contacts application was not without controversy; many of us feared an onslaught of @facebook.com email addresses polluting our pristine data. Assuming you can get past that hurdle, however, you may be faced with another annoyance: duplicate birthdays all up in your Calendar. Here's why they're there, and how to clear them up.
The birthday listings that appear in OS X's Calendar app under the Birth
