I have the icon on my desktop, and when i start up i have a launcher (1.6.11) and that works OK. But when i click Play in the bottom middle of the screen, it goes to another window. the white screen Mojang. Then if you click on it after about one minute, it says Not responding. i have done this many times, and also i have uninstalled java (i now have the best version available) and i have re downloaded minecraft. Help!!