So has anybody else been getting this? Since I've 'upgraded' to El Capitan i can no longer log into App Store. If I put in the wrong password it kicks me out, if i put in the correct password it just has the spinny thing going round and round forever and doesn't let me in. If i create a brand new user it does the same thing and won't let me in... any ideas? Sorry, any ideas that don't include a sledge hammer, a high speed train and dropping things from very high heights?