Recent issue identified, when you installed the Enhanced mod with TFD, you'll most likely to get a crash on splash screen. This is not caused by OS version nor system issue. The reference is in Thai so you won't be able to translate it properly by a translator (I can assure you) but here's what has happened, translated cursory:
He perhaps to had Win7 x86, he said he installed the patch 1.04 and get the following error sack:
I first thought it might be a complatibility mode issue but turns out he mentioned later about his game that he's using TFD. Which, happened before so I concluded that it was TFD issue with the mod. I'm not sure either it's true or not. Then the other lad (I'm not sure he's younger or not but nevermind) said that he's using Win7 x64 and he got this issue at first then he solved it by copy "some" files to my document.
@madmedve: Download TFD patch or even the mentioned crack
Btw, if you bored of lagging, remove the NatureGrass.ini. It does help, alot for me. The nest version I'll fix this issue.
Later, VectorIV with cares.
PS. If you found this article too confusing, read it again lol cause I'm tired of writing.