Aight I just found something out that works great for me. You know when the launcher keeps saying Login server down blablabla and you cant start the game and you have to restart your computer in order for the launcher to work again? What you can do is go to Start -> Execute, type "cmd" and press enter. Once you're in the dos command box type "ipconfig /flushdns" and wait for the message that the DNS cache has been flushed. This trick has worked for me for quite some time now, I don't know if it's already discovered and don't know if it will work for everybody but just thought i'd share it with you guys.