Modern warfare 2 PC help?

I'm trying to play Modern Warfare 2 on my laptop and I get an error saying "Video card or driver doesn't support UBYTE4N vertex data." My video card is an Intel(R) Graphics Media Accelerator 3150. I've tried updating my drivers and I get another error saying "The driver being installed is not validated for this computer. Please obtain the appropriate driver from the computers manufacturer." My laptop is an acer and I've been on their website and can't find anything about Intel video cards. Please help, I don't want to have wasted money on this game.