i just recently got a macbook pro 13 inch for graduation so I can use for college. Well I love it so far, but today i just recently came into a problem with my garageband. I like to make music and beats, the problem is i was testing the recording software just for fun, and it basically just stopped working. The program still works fine but when I try to record one record feedback, the feedback is this very whiney and high pitched and i cant hear my voice at all. I generally use headphones with the record feedback method but it just didnt work. I havent had my mac that long i'd say this is my third week with it. I tried what I could to see if it would work again, and a popup came up saying, garage band has detected feedback you have three choices, monitor on, monitor off, or feedback protection. I tried all three and they didn't help. What i wanna know is this a harddrive problem or error that has to get fixed at a macstore or shop ? or is there an easy way of correcting it. I've tried looking it up and it seems no one has really posted anything about having this problem, im not a wiz with computers i just want some help. thank you