OpenGL error

well i tyr to play the game “iron grid warload” but it give me the error
" GLW_StartOpenGL() - could not load OpenGL subsystem "

I have openGL 1.1 and i m using GeForce4 Ti 4200 AGP8X
thanx in advance for you guidence

This is quite an old card.
What OS version are you using ?
Try find your driver here :
http://www.nvidia.com/Download/index.aspx?lang=en-us