Ok, I was having a problem that when I started a game, my screen would get resized. The borders were black and the resolution was messed, including my desktop resolution.
So after reading this https://code.google.com/p/winetricks/wiki/ResettingScreenResolution, after my screen got changed, i used xrandr -s 0 in terminal and the desktop was ok, but this happened to my game http://imgur.com/QnPQDsh.
I logged out and tried to play another game and now everything is normal.
Wtf is happening?