Open Gl not supported with my video card?? Why?

I have a nvidia geforce 2 card that has been running open gl to play counterstrike fine. Then I loaded civilizations 3 and now it won’t let me use open gl to play counterstrike…what’s wrong?

i get sluggish game play with counter-strike using inno 3d tornado. how did you get your counter-strike to run just fine? ive installed the proper drivers and updated my direct x to version 8. please help im using win98.