I've had problems for the last few updates, each time it will crash when the grey loading bar reaches ~10%. [K2 exception] Similar to all the others that have posted.
Again, the only solution is to reinstall with the updated installer or to copy over the changed files from a working install. Either way gets you back playing the game, but does not fix the problem. My original base install was from approx August 2009 during beta.
Running WinXP Sp2, ATI X1950XT.
Would it be any use if I uploaded my /Update directory so you can confirm if the update files are actually being correctly downloaded?