me 2 I have the exact same problem and I never had this problem before. It only happens to my sub accounts if I get on a normal account and doesn't take forever but a sub account when trying to log in the screen turns all black and then after a min. later I get to log in which never happened to me before used to take 2 sec then I was logged in. Can any OP fix this please because I never said anything about the problem and when I start to hear people talk about it, I had to bring it up.

After having updating Java you must clear your temp internet files/cache before trying to login.