Couple of problems with gameplay; firstly I cannot go inside the Gommorah casino for more than a few seconds without the game crashing. It starts back up fine but as soon as I enter the casino again and walk around I get "FalloutNV.exe stopped working".

Also (not sure if this is a bug or I'm doing it wrong) I have started the quest "Keep Your Eyes on the Prize". I have been to Nipton, returned to Ranger Ghost, however I have no new dialogue options and cannot continue with, or end the quest (without shooting her obviously).

Anyone got any ideas/help?