I recently bought minecraft- really excited about it because then I could connect with my friends, and plus Ive played the Pocket Addition and thought it was awesome. So I registered, bought it, but for some reason I couldn't open a world.

It would say "Loading Terrian" and then just close on me.

As I kept trying, it wouldnt even get to the point where it would say MOJANG. Just go to black and shut me out, no error messages coming up.

I've gotten my computer wizard friends to help me but they cant figure out whats wrong either. I'm so confused and upset- 26 bucks down the drain. Can someone explain to me whats wrong?