I developed a game on screen 16:9. if PlayerSettings are Full screen mode + MAC OS, than the resolution is fixed at 1024X768 when the game is first run. (1024x768 is not 16:9, so my game display was broken") I checked it 1024X768 in "com.Compnay.ProductName.plist". Once fixed at 1024X768, after selecting the resolution (PlayerSettings> Display resolution Dialog), the screen is displayed correctly. Is there any way to control in code without display resolution dialog? Please share me your solution, if you have experienced a like this issue. I woulid like to solve this problem for my users.