When you purchase new operating system like Windows Xp or Windows Vista, the graphic card driver has already installed as soon, because this Operating system is have a plug and play hardware driver. However, if there are those that need much higher performance from their graphics card, perhaps for gaming purposes, then the default driver isn’t going to be good enough. Find out which graphics card is installed in your system, then visit the graphics card manufacture and install an updated driver (if available). This should help speed things up rather nicely!