Hi, I know Civ V via steamplay is playable on osx. Does it work in full native resolution (ie. widescreen 16:10 or 16:9)? I have seen some youtube lets plays where it is only in letterbox. Also, would the new hd4000 integrated graphics run it well? I have an alienware m11x with a 335gt m running at 1366x768 and it runs fine. Notebookcheck says the new 4000 integrated graphics are a few percent better than my current card.