@y_nathz: I don't know!
I never had that problem before: I press on the green button, then the screen goes black and after a few seconds, I'm back at the "Sign up"-page again!
I LOVE to solve Rubik's Cubes!!
I have about five at home. I think I need to look where I've put them, because since I saw Luhan playing with one, I really want to solve one again too!
