had the same problem a fresh install did the trick for me i know this is not a ideal and not even close to a good fix but it worked none the less. just uninstall install and right away run the auto-updater should work.
as for my previous post about the never ending loading screen and teleporters not working. i read someone (sorry didnt remember name) saying it was my computer the results of everything made me believe that too however i did find a work around that works in a other thread regarding the never ending loading screen.
this workaround suggest to use a german no cd-crack to start the game get passed the hick up and continue playing with the orginal .exe and cd. this actually worked for me dont know about other people. finding this out makes me thing the problem is in the .exe file somehow.
hope this bit of information helps somebody.
and to stay just a bit on topic the new patch is nice and hoping to see that promised uber patch soon to fix those narly bugs.