XPS 16 Screen Settings

I just got my xps 16 yesterday and I have a few questions. Whenever I'm playing a game say Warcraft III, it always covers the entire screen(15.6") which causes a slight distortion in how it looks. When i ran Warcraft III on my old computer, for ex., it would create these black borders on the sides which would sort of compress the image making the game look much better as opposed to having it "fullscreen". Is there any way to change this? Would this have to do with the game settings or screen settings?

Maybe its just that Im not used to this but is it normal for a 15.6" screen to have its taskbar, icons, etc looking this small?

Here's a snapshot of my desktop.

 

Open your CCC (catalyst control center). Navigate to Notebook panel properties / Attributes. You'll see 3 options, choose "Preserve Aspect Ratio" to keep aspect ratio of game (add 2 black margin on left and right screen)

 

Thanks. That did the trick.