The other weird thing, in Shaded view everything looks B&W - trees aren't green like in Wireframe. Nate, the shaded view will be all in grays until you select different colors for each item. Select an object and on the Material display, there's a drop-down next to a color-bar. Open the drop-down and pick a color. This is how it's set up on the PC version, but I believe E-on is keeping much of it cross-platform, so it should be the same or similar for the Mac version. Let us know! :)