So I am trying to hook a microphone up to my PB 15" 1.5ghz, but for some reason I can't seem to get it to work. When I hook it up and go to the System Prefs to change the sound input option, once I change it to line-in, no sound comes in at all. Any word on what's going on? The 1/8" jack next to the headphone jack has a funky icon next to it that doesn't look like any other line-in I've ever seen. Does this computer have a line-in? If it doesn't, what is this?
Jason
Jason