I see a lot of issues on these forums, mainly with crashes and freeze's and now I am having them too. I just changed out my ATI 4550 video card to a Nvidia GTS 450 and the game runs very smooth now, but I now get random crashes. Sometimes after playing only 5 mintues, other times I can play 30 minutes before CTD.
I see a lot of people stepping up and offering fixes or work around, but does Bethesda have an official tech support for the game. I was wanting to finish all the DLC before I started New Vegas, but only on Mothership Zeta now.
To those that offer these fixes, my hats off to ya.