I see two issues here.
First, you may have an overly aggressive a/v client running. I'd recommend temporarily disabling it when installing and patching the game. You can re-enable it afterwards.
Second, your video card is not supported by our game. It only supports up to DirectX 9.0, and our minimum requirement is DirectX 9.0c. Such support must be in the video card's firmware, not in software.
Your computer has an AGP video expansion slot, which is probably where your current video card lives. Since the AGP bus is considered obsolescent, at best, you will probably have to shop online for a newer and more capable video card. Selections will be few, and probably a bit more expensive than for similar PCIe X16 video cards.