I was following the "Wild Card: Change in Management" quest.
I already had the platinum chip and the last two things I was supposed to do was to talk to Yes Man and then kill or disable Mr. House.
So I talked to Yes Man and he told me about all the possibilities I had while in possesion of the platinum chip and bla bla bla...
Then I walked up Mr House's penthouse and told him I would not give the chip, the robots attack me, I kill everything and go to the control room where I spoke with Mr House in person, and end up killing him.
Then, all of a sudden a new quest pops up, called "The House Has Gone Bust!", and just a second after, it pops up again saying that this quest has failed.
Now, the "Wild Card: Change in Management" also showed up as completed, but in my quests tab it shows as active, although the steps to be completed appears faded out as if they were complete.
So I ask, is this it?
What about all that power that I was supposed to have, in possession of the chip?
What about the upcoming war between the NCR and the Legion?
What about the Dam?
Please, I'm really lost now! Any help will be much apreciated!