Well, that was quick. Bethesda says it has just released an automatic update for the PC version of Fallout: New Vegas. The fix resolves quest and scripting issues in the game, and Bethesda says it's "working hard to make this update available for the PlayStation 3 and Xbox 360 versions of the game as soon as possible." We'll let you know more when we know more.
Another bug squashed: The issue regarding the PlayStation 3 digital pre-order bonuses has been resolved. According to Bethesda, users should attempt to re-enter the codes to download their bonuses. If your "80023156" error continue, wait 24 hours before entering the code again -- that should fix the problem.
Since it's always good to laugh at problems, I vow to post a funny YouTube video of a New Vegas glitch for every post about potential patches or fixes. Here's a terrifyingly supernatural Doctor Mitchell from the very opening of the game. Call an exorcist!