MX Simulator

My friend bought a new monitor and gave me his old 13" by 13" monitor. When I run sim in windowed mode and make it full screen on the monitor I loose about a inch on the screen on each side. What I mean by that is when you open mx sim there's all that space between the left side and the screen to the buttons, when I open sim I only see half the buttons because I loose all the space. Is there anything I can do so I don't loose all that screen space? Thanks

The issue is with the monitor; the game doesn't have "safe zone" settings (or atleast I don't think it does). Try playing around with the monitors screen settings to see if you can make it fit