I entered my username and password, and the first time I did it, I entered the wrong password and now there does not seem to be a way to submit my username and password. I tried rebooting it, though there is not a submit button after typing in both fields. 1. How do you activate home sharing after typing in both your username and password? 2. After setting it up, where do you find shared music from a computer with iTunes on it? Thanks.