Gerard ... it could be ...
its some sort of volumetric thing
but I'm running in DX9 mode atm (I think !)
getting about 30 fps average in 1900x1200 no AA
but if I select 4xAA plummets to 13 fps ... but no much change in visuals - ie doesn't realy look any less jaggied !
<EDIT> deffinately dx9 mode as very high is all greyed out
its some sort of volumetric thing
but I'm running in DX9 mode atm (I think !)
getting about 30 fps average in 1900x1200 no AA
but if I select 4xAA plummets to 13 fps ... but no much change in visuals - ie doesn't realy look any less jaggied !
<EDIT> deffinately dx9 mode as very high is all greyed out