Client

Hi tehre how do i fix my game? From the beggining when i downloaded the game its not wide screen and its like small window and its uhm how do i explain it its not wide screen its a big one like the theres about an inch of black screen on left and right side when u play cf. but now its wide and its anoying how do i cahnge it back? i got no clue how it went to Widescreen i want standard