When I get to the character selection screen after launching the game, the game just gets stuck in a back and forth loop between desktop and character selection screen. I can't log in on any character, nor quit the game gracefully.
The game worked fine a few days ago (before the patch on 26/11). I just applied the patch and updated the NVDIA driver to version 417.01 (but no other game has an issue, it's just GW2).
EDIT: I managed to get the game working by switching to windowed full screen (was previously on full screen).