well im using garageband and ive setup the entire system so that i can use my inline microphone jack on the back of my system. i did go to sound preferences and everything and when im ready to try record in garageband theres nothing at all. So i then check garageband to see if its preferences are in the inline for the input settings, and they are. So i double check system preferences sound settings, same story. I even tried the voice command module and its not picking up anything. What should i do whats wrong!!!!