how do you fix it when you select fullscreen but it only goes up into the corner of your screen? i would deselect fullscreen but when i selected it it screwed up my mouses calibration in the game so it isn't possible for me to click fullscreen again to deselect it. PLEASE HELP!!!!

Try changing the resolution proportionate to your monitor resolution.

Hit the windows button then try to deselect it.

You could also press ctrl+alt+delete or ctrl+shift+esc to bring up task manager and end the application. Or you can also press windows+D to go to desktop.

check ur vid card...or change resolution