I'm kind of impressed and horrified at the same time that inventory bug could happen... I ended up googling it and apparently it's an engine bug that's hardware related and changing the renderer should probably bypass it. so I did that. but if it doesn't fix it... well... not much I can do about that. in short... your computer is in fact haunted. sorry for the news. anyway, thank you very much for playing once again... even if you've broken things once again.