Hey! The problem tends to auto-fix itself if you leave the launcher up on the gray screen for about 10 minutes or so.
it downloaded a patch that resolved the issue.
update!
scratch that, it just took me to the white screen.
I GOT IT!
follow the earlier posted instructions and delete the guild wars two configurations from the Application support folder and simply restart the client. bingo.
Wich configuration files did you delete and where did you find them? There aren’t any in my Application support folder. I’ve let the launcher run for about 15 minutes, and it still doesn’t do anything..