So i played my game last night, and everything went great. Today, however, is a different story. I load it up (I'm on a MacBook Pro), and the "Minecraft Launcher" screen comes up. I log in; no big deal. Then, BAM! The "Updating Minecraft" screen comes up with a long green bar at the end that is almost full, but isn't getting any fuller; above it there's text that says "Done Loading." All I can do is close the game. That's it. Anybody have any suggestions?
It Won't Start Up.