In Windows in the game directory, start the BGMain.exe -> Shadows of Amn -> Single Player -> New Game -> ...
(so don't load from an old savegame, as they refers to outdated dialog.tlk in all the texts, because you moded after you started the game and saved)
there's no way i start everything from the beginning, its like day 50 for me ingame, already passed tons of soa and tdd.
so theres no other way to fix this? like some cheat program to modify characters or....