so i'm new to the mac world and need some assistance. i was ilife 09 on my lap top and have been playing around w/ garage band. i have recorded tracks on a yamaha digital piano, saved them, and imported them into garageband. when i go to select a certain instrument, there is usually an arrow beside the instrument i desire. which means it must be downloaded. so...i downloaded the loops and everything the other day but it still comes up that i havent downloaded them. i am currently attempting to download them again, but can someone give me some guidance about how to do this? thanks!