[snailsave11]

backup your conf.ini

then try this, I got a 9800GT too and find this optimal:

the source of your problem is that you turn off part of the shader 2.0 effects with ForceShaders1x=1 therefore you get an intermediate between excellent and perfect water

you can go for water=4 and effects=2 but not recommended cause theyre too heavy on fps

The only way I can thank you is this picture