Hey guys. So I have a problem...I think. So I recently bought a 30 inch LED monitor to connect to my macbook pro. Everything has been going fine, except when I play games. For some reason when I open up Civilization 5, instead of playing on the big 30 inch, it plays on the small 17 inch MBP screen. Suggestions on what to do? Btw I want it to play on the 30 inch.