Find out what type of chipset is on your motherboard, intell, SIS, VIA ect cause you might want to update the chipset drivers. If ya dont want to use a scewdriver I use Bioswizzard it shows the type. you can google for it. some times you will see the chipset type when booting up.
Ya might want to update DirectX find it a Mirosoft downloads. Alot of new game wont run on old versions.
google the card brand to find the site. look in support for new card drivers.
If you get a new card still look for update drivers cause it might have been on the shelf for a while.
Good luck
OOpps i broke it.