Why cant I play COD 4 on my PC?

Question

Why cant I play Call of Duty 4 on my PC?

I am able to install it and everything, but when I choose to play multiplayer or single player,this pops up:

Video card or driver doesn't support UBYTE4N vertex data.

Answer 1

Well... as it says, its something your graphics card doesnt have.

Go to http://www.systemrequirementslab.com/ref... and choose call of duty 4 and click 'can u run it' ... the result will show you what all ur pc doesnt have which is needed for playing the game and it also says what you need to upgrade in order to play the selected game. Hope it helps =)