Originally Posted by r9
In Dirt2 for postproces medium is the max it can go. So I guess that I was right about not being able to run DX11. So now I need someone that can be right about how to enable DX11
have you uninstalled your 4850 drivers and have you installed the latest DirectX drivers?
You should be able to kick post process to high.
Also there should be options to set things on Ultra which should be only for Dx11 card aswell i believe.