User blog comment:WolfeSpeider/Help?/@comment-1992639-20130304120416/@comment-4113369-20130304153944

I'm pretty sure they've used the same system since Morrowind. At least. "Archaic" is a pretty mild way of putting it :P

I'd say try starting a new save, and see if the problem still persist. If you've recently downloaded any DLCs, they could theoretically screw things up pretty badly for an older, high-playtime save.