Hmm, this is really weird-- we'd never heard of a bug like this. I'll be looking from my side and keep you updated if I find something, but my first instinct is to wonder if maybe your anti-virus is identifying the game as dangerous? That may be the case, especially considering we don't really have a digital signature for software or something of the sort. Maybe your AV has a history function that lets you see that?
Let us know, even if not, I'll be looking for an answer and let you know if I find anything :)