to work or to not...open gl for games

i’m trying to get my games to work, they suddenly stopped and i get messages saying “software opengl context” i tried that DVA but it wasn’t in my win.ini file, is there something i could download, some driver that supports opengl or a website i can go to? any assistance would be kindly appreciated

i have a rage pro turbo, win 98, 256 ram

www.nvidia.com

rage pro is a ATI card.
www.ati.com and get the driver for the card adn OS you have