Home Sharing won't Log In
I'm trying to set up a home share with my Apple ID but every time I type in my ID and password I get the message "Home Sharing could not be activated because the username or password was incorrect." Obviously it isn't, because I'm posting this as we speak, and I'm logged in to the iTunes store with this account. I've even tried deauthorizing all the computers I have set up, reauthoritzing them, then trying again, to no avail. What is going on here?