I got "Call of Duty" game that requires "3D Hardware Accelerator Card - 100% DirectX 9.0b compatible 32MB hardware T&L-capable video card and latest drivers". I have integrated Intel Extreme Graphics2 and my computer freezes when I try to play. I read on this site that it is only for DirectX7 and is not T&L capable. Is it possible to install the correct 3d card and avoid any conflicts with existing integrated card? If it is possible, what card would you recommend? It seems very difficult to find any information or reviews about this.