After I have talked to Ingvar Johansen in the Society of Leopold quest, when Im going to the boat with the timer running, I get on the boat and the loading screen shows up and it load finish but when the loading is (100%) The game crash, no error message is comming but a error log is made:S
Im running the 1.2 patch.
I also think that this bug was fixed by the unnofficial patches but to use them you really need to start a new game to avoid further complications. The above thread should have some solutions though
__________________ Moderator of Baldur's Gate, Fable 2, Hellgate:London, Neverwinter Nights 2, The Witcher and VtM:Redemption.
Also you can go back to a save from before entering the caverns, if you install the Unooficial patch, though in general as mr-sir mentioned it is better to start over, but in a crunch it can be done.