In case you are still seeking a solution, Apple recommends downloading and installing the "Windows Support Software" using the Boot Camp Assistant to use the Retina display with Windows 7 or 8. This is their link: www.apple.com/support/bootcamp I found your questions searching the threads here for Mac users. I love GIS and appreciate the great contribution ESRI has made - but it is time for them to make a native Mac ArcGIS Desktop. Good luck with the work-around and I hope it helps.
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