It's often been so, you can enable shiny water with ati/amd cards,
but the card still doesn't show it.
Enabling shiny water on nVidia either shows it correctly or crashes.
Tried but couldn't find a screenshot of what the water is supposed to look like.
Could you try enabling and disabling the setting when in area with water?
The difference should be super obvious, night and day style.
I last had water working, when I briefly had GF 8800 on this rig ways back,
with my older setup with GF 7600, shiny water would crash the game.
Post edited May 22, 2015 by Jarmo