SiS Mirage 3 Graphic - windows 7 driver

i just got my new laptop and installed windows 7 and I installed SiS Mirage 3 Graphics driver, I have 3GB of ram, but games are really laggy, i get 5 - 10 fps which is really bad, i tried to install another driver and i increased fps for only 2, anyone know where i can get latest windows 7 SiS Mirage 3 Graphics driver?

I tried a few drivers already but there is no deference, any suggestions?

Thanks,
- Nikola