oh dear Ywa. Go to tools, right click on sdk, there will be some option for properties, then there will be some boxes, click the box that isn't defrag, ( I don't know what it's called you see ) then put what ywa said (-dxlevel 80) in there and close, then run SDK and hammer, although I Don't think it will work. I had a similar problem when my graphics card needed an update, once I did it, it was fine again. Also, whatever you're running your settings on, sometimes you need to go back into that game just to reconfigure it. If not, click the top left box of each window, click whatever setting it needs so it looks fine again (probably unclick wireframe), the camera can stay how it is.