I bought that DLC and downloaded it, right after downloading F:NV again. Now whenever I wear 1st Recon Beret a red rhombus goes around my character. I am at Nellis AFB and most of the Mini Boomers are missing everything but their hands and head, and when I speak to them the captions appear but the voices do not. I tried creating a new character but Doc Mitchell's body is gone, his head is extremely close to my screen, the animation where my character sits up is gone and I am just sitting up when it begins, I can choose my name but when it asks me to create my face Mitchell just says "How'd I do?" and my PS3 freezes.

Any help on how to fix this?