@kriller2
I have tried what you said. And for the first time ever I saw the
white lines. Usually they are blue. And then I saw this:

that looks like the white lines turn blue right there in the middle at the conning tower? That schreen shot was done with tmo163 and then I tried SHIV1.5 stock and I got that:
In those pictures you see the same thing as before: the white lines. But then they disappear. That's what I want. But instead I have that blue crap

. I could live with the white lines actually, but I want to get rid of the
blue lines. I will be doing my silent hunting in deeper waters and more far away from land so I have no problem with that. But that blue stuff is there...ALWAYS no matter where I am.
I do not have time to go through the links you posted today, kriller2 thank you, but I will for sure tomorrow.
[edited: Woops, forgot to mention...those schreenshots were taken in the torpedo attack mission. did not move the boat. that happened right where it was...suppose that is the position where shallow water turns into deep water? ]
@archie:
It is late here but now that I have seen that my problem is probably not stock SHIV related I will try to find out more about the water-shader file you were talking about. But as mentioned aboved too much for today. I will get into that tomorrow!
@reallydedpoet:
Thanks for the welcome!