DX9 and i enabled that setting....but if it makes any differance when ever i turn that on the game gives warnings when i start it than the textures become invivible and it is not playable at all i can get to the dome by guessing my location but in there the pull star wont work(only happens when i enable that setting in DX9)
Checkout my latest project ( it is a program that downloads and compiles dolphin on mac and linux now): http://code.google.com/p/dolphin-emu-downloader (It's unofficial and maintained by me, not the dolphin dev team)