i'm using an m-audio mobilepre usb and garageband to convert my vinyl records into mp3s. my recordings have constant feedback in them, and apple's help says to turn off monitoring to fix that, but i turned it off and it still records feedback. i was getting a lot of distortion in the beginning, but i fixed that by just turning the volume down on my record player, so i'm wondering if the feedback is related to a level somewhere too, i just don't know what. can anyone else think of any reason for the feedback??