Has any one else noticed the box for phys x has gone and a greyed out box (for me any way) for gpu particles is now in the options. Could this mean the coming of a return of these effects but in a way that makes it available to amd cards as well any one know.. off topic i discovered today that the graphics tab in the options refers to shader settings , turning this to low got rid of a lot of the over the top smoke and fog, improved fps and my hitching with out any major decrease in quality.. really should be made clear what this option is.