I want to say thanks in advance for anyone who takes the time to read this, whether they're able to help or not. I'm new to Macs, and GarageBand as well, so keep that in mind if you are able to offer some help up. So the issue is that I have a ZED 14 mixer that runs a line-in to your computer via the USB port. In the user's manual for the the mixer it says that it is ready to use through GarageBand right out of the box. However, after hooking it up the audio options/inputs won't show the mixer as an option for recording. I tried to follow a guide on the forums about setting up an aggregate audio device, to no avail. I'm sure I'm being thick and the answer is simple, but I'm about ready to chuck this thing out my window and give up. If anyone could point me in the direction of a good guide or give me some directions, I would be forever grateful. Thanks again!