i got a question hopefully theres an answer

when i play street fighter 2 the screen is going to the right side of the screen. ..
streetfighter 2 looks terrible like a half a screen its like its not wide enough or something and again the blackness on the monitor is showing on the left side.. and most of the right side of the screen is going a little bit over!!!.
while an old game like crimefighters play Perfecly with fullscreen???
do i need to adjust something on my monitor??