Are all your boxes on the same "Y" coordinate? Forgive me if this is stating the obvious, but it's the only thing which springs to mind just now.Robert

Hi Lars,Just updated the drivers to 275.33 and that has fixed it. Sorry - should have checked that first! I'm used to checking the desktop ones, but always seem to forget about the notebook.Loving the new smoke effects. I like that you have kept the traditional "haze" option as well, in case we n...