I have a 24" Samsung external display which I love. I connect both my 13" MacBook and my 11" MacBook Air to it. On the 13" MacBook, the image is crisp and couldn't be better. If I understand correctly, the 11" Air can output a higher resolution, and in the Displays section of System Preferences the default and best resolution is "1080p." On the 13" MacBook it's something significantly lower. That being said, the picture quality is somewhat fuzzy when hooking up the monitor to my Air, and I don't think it's due to the Air itself, but instead something must be misconfigured. What can I do to get the sharpest picture possible? Thank you!