Hello Nick, I have been playing around with the Quartz Composer and have made screensavers, stand alone compositions and basic overlays for ME. I have tried to create an overlay that utilizes Image1, Image2 and Mix, but i cannot get the overlay to respond. I tried with Mix only, but the fader movement doesn't affect the QTZ overlay. Do you think you can send me an example that use Mix, Image1 and Image2? email->> djnyce@gmail.com Thanks, DJ Nyce