Technical problems and bugs

[Elias_Maluco]

[rant]
I got the game this weekend, from gamersgate, and Im really trying to enjoy it. But it aint easy: if I knew I was buying such an unfinished, rushed, bugged piece of software, I would have spent my money on something else. The game shows a lot of potential, and at first I was really impressed. Now Im just feeling a little robbed. So I cant recommend this game in its current state: if you are reading this while deciding to buy or not this game: dont do it before they fix it.
[/rant]

Now that I got that out of my chest, please kind people of this foruns, see if you can help me:

I got that mission in Sagrada where you are supposed to protect the local arms dealer from some bandits ("The Racket", I guess). I went to that Ramon guy who hides with his gang nearby (I understood these were the bandits, still not sure) and killed than all, leaving a save from before the battle.

After that, I went back to the dealer to get my reward, only to find out he had already been killed and the mission was already failed.

Funny thing: if I restore that savegame from before I attack Ramon, a few seconds later I get "mission failed" anyway and the dealers is already dead.

Worst part: killing Ramon or not, I cant leave Sagrada anymore: the game will CTD right after getting to the map screen. I tried the "first" fix described above, but nothing changes (I was supposed to have done it before, maybe?).

Any hints? I have yet to try reinstalling the game, I guess that will be my next step.