Dear Computer Experts,
I have a Radeon HD 6670 which supports DX11. But it is not working on double-clicking the shortcut for Arkham City for DX11, the program simply stops working. Using the BmLauncher I have to go to Settings and turn off the DX11 function. Also, during the installation, I only remember installing DX9, not DX11. Do I have to download any software or install something else for DX11? When Windows 7 says that Arkham City has stopped working it also notifies me by saying that they couldn't load the shader file. Why do these problems always happen with me? But I am able to play on DX9.