The Millennium P750 only supports 2X anisotropic filtering, so there's not much to see here. Let's check out what the card's 2X aniso looks like. Click on the images for an uncompressed PNG version of each screenshot.
2X aniso is an improvement over trilinear filtering, but there's still a lot of blurring in the distance. Here are the mipmap transitions with trilinear and anisotropic filtering: