At least you guys can play the game. I can't even get past the launcher after pressing "Play".
Be nice if they'd actually take the time to let us know what the problem is and that they're working on it.
I'm still having Game Guard issues. Fun fun, buddy of mine just got in the game though, so things are up again.
Close down the NCSoft launcher fully, deactivate your anti-virus and firewall, delete the entire GameGuard folder, then start the launcher up. Wait for GameGuard to download and install, then start the game.
Do not activate your anti-virus and firewall while in the game or when starting up or it is likely you will feel its wrath...