HI
new drivers have more to the card, can have new things, it can work faster and it can be more powerfully
so it not bad to update the drivers, not only the graphic card but also other things in you PC.
chip sett, network card and so on even the bios but that are not for anyone, you most know how to, if you do it wrong it can destroy you motherboard.
visit you motherboards website and you will find new drivers
Tore