Note: Transfered from General Discussions to Limited Beta forum since I'm not the only one to have this problem.
Yesterday, everything went alright when I wanted to play to TF2 non-beta version. But since today, TF2 is stuck to the gray picture between the intro and menu. The games just crash a that moment and I can't define the problem with the console output or the dump file.
Oh ! And before I forget, other games(TF2 Beta and Serious Sam 3:BFE) are working .
Here's my console output from the start of the game : http://pastebin.com/hpQqqDQ1
And here's my dump file (hosted on my Google Drive): https://docs.google.com/open?id=0B9O7lsNKiu5Jc0VKa184ekhpRUU
Thanks a lot everyone !