Well, at this point that's all the advice I can give you FeralHeart wise.
It seems like from here on it's a matter of your computer settings, (which I'm completey clueless about those) so i suggest looking elsewhere for a good fix. (Maybe on a site that supports your kind of computer/video card)
Have you uninstalled/re-installed Feralheart & Simplistic? (By uninstalled, I'm talking removed every file and replaced every file. )