You took the game out of the archive using a winrar before playing?
Yes. Were we not supposed to do that? It was working fine until the bartending tutorial.
Edit — it may not have been WinRar; but the unpacker serves the same function. We have two unpackers, we don't know what the one we used is called, the other one is PEAzip or something like that. Should we try unpacking it with PEAzip instead?