Patch 3.1 – we’ve been waiting for it.

Which publisher released your game? If it was Buka, then you need to install the patch from Buka. I can't suggest anything else for now; I need more information. Yes, Pobeditel came up with some good ideas.
P.S. I liked the patch. I managed to finish the game before it, but then I saw many new scripting functions in the patch, which is useful for mapmaking.