I have created a song in GarageBand but am unable to export it to iTunes. It goes through the exporting process, and then iTunes opens up, but the song doesn't show up in iTunes. I can export any other song created in GarageBand, but for some reason this song won't. I tried exporting it as a podcast to iWeb, but that didn't work either. Any idea what the problem could be, or what else I could try? Thanks.