OK so here's the deal. I want to create a Christmas album for my family in the next few weeks, I know we're not at Thanksgiving yet, but I like to start early. Anyways I have a Mac Book OS X version 10.4.11 and every time that I try to record a Karaoke track on my Garage band it doesn't record the music just me singing a-Capella which I don't want. What am I doing wrong? IS there some soft wear I'm supposed to Upload or download to the computer? I've tried getting ARIA on my computer but it doesn't seem to work. Any suggestions?