The problem is still persisting after applying the v1.15 patch. Both the partitiuon where I have it installed now and where it was previously have >1 GB of empty space, so it's not that. I'm still blaming Windows for screwing things up, but I did notice that the patch failed to update one of the two DLL files it tries to modify. For the first one, it gives me "cannot update, access denied" or something like that as an error.
Not that this problem affects actual gameplay, it doesn't, but I was wondering about it. No need to waste time trying to look for it on my account unless it's a quick thing, use it on DomII instead.
Edi