I ordered a new Macbook 2.16 GHz (white model, stock with no customization) from apple.com and it arrived yesterday. The Macbook does not recognize the ethernet cord unless I shove it all the way in. Furthermore, if I lightly tug on the ethernet cord, it comes out! It does not lock into place. So I called drove one hour to the Thousand Oaks store and did a direct exchange after testing my Macbook with their own ethernet cord and finding out that the jack is defective. I drove an hour back to my home, only to find out that this new Macbook has the exact same problem! Has anyone else here experienced this?