Well since using Build 17 ive been getting major fps losses at areas of water and smoke. From My usual 75(vsync) down to 35ish... Heres the screens. First one is without the water area.
It looks distorted because i have 1440x900 resolution, but this is been scaled down.
My Specs are, AMD XP3200, 1.5gig ram and a Nvidia 5700 128mb. I doubt i have poor specs for this game since i get 40+fps on Css even in water areas.