Red Alert 3 Screen resolution issues on Mac OS X Mavericks

[dcole2986]

I recently downloaded and installed Red Alert 3 for Mac. Game seems to run fine, however I cannot change the screen resolution. Every time I change the resolution is the game settings, the screen goes black for a few seconds as if it is about to change to the new resolution, it shows the menu screen for a split second in the selected resolution, then reverts back to 800 x 600. I am running OS X Mavericks.

I have tried everything that I know to try regarding display settings. I have turned off all "spaces" and any other display settings in the Mac that could conflict. 

Any help would be greatly appreciated! Thanks!