Problem with media player -_-

Hi, my windows media player 10 is ******* for sum reason, i can listen to music and everything fine on it theres just one problem and thats when viewing videos the colour goes all messed up when it shud b normal ill attach a pic of it, its quite annoying because i have quicktime n i usually use that to view vids cos the colors fine with it but not all videos can be viewed with that :/ also in real player the colours go messed up like it does in media player wen viewing a video so i dno wats up, any help is appreciated