Mafia exits after short time

[RincewindTheWiz]

Well, it looks like it's a graphics driver problem. The moment you switch to 3D graphics, it goes wrong. It also goes wrong without any crack applied, so it's something with the game itself. Mentioning an ATI card really makes a driver problem even more likely (so was my experience the last few years anyway), so try some different drivers. Remember : the latest drivers are not necessarily the best.