Hang on.

You have an Intel Chipset, but that is the motherboard chipset? correct?

If so then the motherboard chipset and the graphics card are not related. You can still download the latest ATi Catalyst drivers for the graphics card from ATi/AMD, and the latest Intel chipset drivers for your motherboard from the manufacturer of your PC.

It doesn't matter what make chipset and graphics card are. You can mix them.