Well, that's not good news. I don't understand why this is so difficult if it's just an audio sync. People with old pcs have been able to use the Blender forever, and if I'm not mistaken, Cathe is a Mac person, like myself. So I don't get the hold up. I've been really patient, but I would really like to be able to put together my own own workout mixes. I have two Macs (one with Lion, the other with Leopard) and I've NEVER been able to use the Blender. I feel totally left out, and I know I'm not the only one.