Hi, I've been having trouble hooking up a record player up to my G5. My connections seem fine and when I play records, the music is definitely going into my computer. The "input level" under settings shows an audio reading when it is turned up. But I can't hear it. I can even use audacity to record from my record player. Anybody know how to configure a mac so you can listen to music being input through the line in? Your help would be greatly appreciated!