i have a geforce2 mx 400/420 graphic card,whatever that means.Previously when i was using windows 98, i could install the card drivers and could use opengl in CS 1.5 but now i reformatted my c: and installed WINDOWS XP, alas my new OS does not allow me to open the application for installing drivers.After checking, i found that XP has already installed the drivers for me it self but now i cannot use opengl mode in CS 1.5 as my computer says my graphic card does not support it.Can anyone help me here?

Download and install theese drivers: