Fullscreen problem

[ChellSky]

Every time I try to start game in fullscreen mode it just miminalize. I can still hear the music but the game window just refuse to stay open. I thought I messed up something cause I was trying to add some new mark but after I reinstaled I still have the same problem. It seems to be working just fine other way but I would still appreciate some help ?D

[Kerriki]

Try changing the rendering mode thing to "Direct3D9" (or something like that) or "OpenGL" (something like that), depending on which one you are currently using.