Well, it's been a problem for ATI cards for YEARS, so updating drivers wont help. And downgrading 3 years back? Yeah, bad idea.
So was hoping if you had a grass that was working proper I might add it to TSLRCM to fix it for all ATI users (without affecting Nvidia users with worse looking grass like JCarter's fix). If it infacts looks worse, don't have a nvidia anymore.
If you could send just the grass I could check it? Using jcarter's now for my own install (yeah, I know, keeping the game pure, but here's an exception . Also for various modding tools like wherami of course XD)...