Hello, i have a nvidia gt 130 graphic card. 1.5 gb dedicated memory. However, it play games lousily. GTA IV, around 856 mb / 1.5 gb memory used only and i am lagging like hell. Can only play gta iv at 1200 x 800... My screen is 1920 x 1080 though. Also, low fps on other games also. Got all drivers updated at nvidia site. This is bad D= Help? Thanks.