I have a Helios 3D voodoo2 cart with 12 mb. And I can't increase the resolution of my voodoo2 cart in windos. It is always 640x480. But the 3dfx configuration screen, indicates that it is possible to increase the resolution up to 1024x768. In some games it is possible to play in a higher resulution, but in most games like World Cup 98 the resulion depends on your windows settings.
How to increase the resolution? or what is the reason it is not possible to increase the resolution?