1. Use Intel HD 4400 Graphics (latest Intel driver, Windows 7 64 SP1, DirectX 11)
2. Start game and connect to a server.
3. Test all Post Processing settings from Very Low to Very High. (Rotation blur and bloom is set to zero, also everything else in the Rendering menu is set to disabled, HDR very low)
I was expecting to see the depth of field blur as going to very high setting.