So it works, but the thing that makes the HDr go from bright to dark depending on what you look at seems to be broken. What happens is if you look at something bright and then turn away everything stays super bright. And it just stays like that instead of darkening. And when it does try to turn darker it ends up going from bright to dark every other frame, making a really annoying flashing effect that gave me a headache in like 10 seconds. And it messes with the water. No clue why, could it be windows xp 64 bit? My specs are Athlon64 3000+ @ 4000+, 2 gigs of ram and a 1900xtx