core 2 duo e8400
radeon 4870 512Mb Catalyst 12.6
9-15 FPS in low or high settings droping to 1-5 in any bigger fight. changing resolution (from minimum to 1920-1200 dont change fps)
game using almost 100% CPU, GPU activity is close to 0%! (<30% when turning on shaders etc)
i hope you will fix it soon.