Topic on Talk:Grand Theft Auto IV
Mods by 'nkjellman' are potentially incompatible with FusionFix. Graphics Fix Beta overwrites many 'win32' folders/files in common/shaders in the FusionFix zip. Both Graphics Fix and EFLC PC Quality Textures also overwrite vehicles.img.
Because of this if nkjellman's mods are installed after FusionFix they will remove some of the bugfixes featured in FusionFix. Perhaps there should be an instruction for an install order featured in the pcgamingwiki page.