It went wrong on the technical side, if you could actually run it at top settings it's a cracking looking game.
Mafia II really is a beautiful looking game, it makes you wonder where GTA went wrong on the graphics side.
Sammo62 did you add any mods to Mafia 2? how did you get them glasses and clothes?
SSAA is basically the equivalent of downsizing your images anyway, the mod just renders the game at double or triple the resolution of your screen and then downscales it for display. Looks fantastic but utterly unplayable without a fairly hefty graphics card.