Post your system specs and settings and somebody will be able to help you better, but without knowing the settings of your game, there isn't much we can say.
i do not believe you are supposed to see throught he grass like this
i asume its got to do with anti-aliasing
make sure to only use 1 AA - either ingame OR nVidias not both at the same time (i recommend using ingame only and setting nvidia to "application controlled"
i also suggest you test with "Anti-Aliasing - Transparency" set to "Off"
also i would like to know if changing "textures" from "high" to "medium" changes anything for you