I keep trying to transfer everything on my iPod touch to my computer. It says that it cannot be transferred because it needs to be authorized. When I sign in to authorize my computer...a message pops up that says "Including this one, you have authorized one computer out of your available 5." What do I do? I'm really confused 
i forgot to add...i got a new computer and i want to transfer everything in my library to it, but it wont let me
also i have over 2,000 songs so i'm trying to avoid deleting everything
i forgot to add...i got a new computer and i want to transfer everything in my library to it, but it wont let me