I have saved the president, and am supposed to talk to Ranger Grant afterward, but I have no option to talk to him. I go talk to the Colonel Downstairs and all she tells me is if the president is safe and I can't say yes or no. I know stuff has glitched and there are ways to circumvent them, but this is the main story line I can't finish. Has anyone else had this problem, or better yet has anyone found a way around the problem. Also small things like Mellisa missing during the "oh my papa" story line. I would have liked to not have killed him but to no avail. I could still continue with the story. Also, I couldn't finish the Brotherhood of Steel mission with Hardlin taking over as Elder, because he never does. Again I could finish the game on other terms, but not the way i wanted it to. I've also had other glitches that have been posted, I just havn't seen these posted yet. I think new vegas could be a fantastic game but, I also think that because of all the problems Fallout 3 was funner. I'd rather play 3 yet again than try to get thru New Vegas the way I want to. I am dissappointed.

did you disarm the bomb? because same thing happened to me but i didnt disarm, the bomb

I tried all the different combinations bomb, sniper, engineer, with and without rex. I'm so dissa pointed