I INFO ABOUT RUNNING OPEN GL IN XP

I have a nvidia GeForce 2 mx grapihcs card and windows xp. Recently i have been trying to run some games such as tribes 2 and medal of honour however both programs keep crashing when iam trying to run them, with a open gl error comeing up saying either i dont have it or its not running what could this be? and does anyone have suggestions on how i can fix it. thank u