Alright so as of right now i've been playing the neutral guy, doing every factions quests up to the point where i actually have to *side* with one. I saved right before i chose a side so i could play through different factions with my character if i wanted to. I just finished the story with NCR a few days ago, and now i want to try Mr. House's path. I went to him and he told me to find out what's up with the Omerta's. Thing is, i'd already completed this quest for Yes Man, prior to my save. So i thought it would just be an easy quick chat with Mr. House to tell him that i already dealt with the Omertas.
Apparently its not that simple, because its not giving me the option to let him know i dealt with the Omertas. Mr. Houses dialogue just gives me options to ask about the Omerta's and nothing else. My quest journal thing says "Talk to Mr. House and let him know the Omertas have been dealt with", so why can't i tell House? I'm assuming its another glitch, because i can't find any way to advance House's storyline at all.