I am recording into GarageBand via a FastTrack USB interface. When I record first off, it won't playback through the macbook (it only plays back through the interface) and secondly, the volume is very low even though I have put all the volumes button up. I am running a MacBook 2Ghz, Intel duo processor, 1 GB ram with Mac OS x 10.4.11 Any help/advice?

Hi PandaWatch, Here's a few tips : 1- Make sure that your FastTrack audio interface is selected in GarageBand > Preferences > Audio / MIDI. 2- If you're recording an electric guitar or a bass, make sure that your Inst/Line Selector button is set to "Inst". If you're recording keyboards or any "Line Level" innstruments, set it to "Line". 3-Make sure the "Pad" button is not activated. Good luck!