My Mac did not come with any install cd and I've tried googling this problem and they lead to using the install cd. I don 't have any of the garageband instruments or loops. When I click on a greyed out instrument/loop, it brings me to the option where i can download the update or update from the dvd. I choose "Download Now" and it doesn't give me the GarageBand update. How can I get all the loops and instruments?