Well, I upgraded my OS from to tiger to snow leopard to begin with. Now when I open Garageband go to open existing project, it will not allow me to open any files. I even tried to make a new project, save it and then try to reload it, But it still wouldn't allow me to click it and load it. Also, when I start a new project, and create new tracks... It will only let me have two software tracks. When I try to make a new track, it will just overlay an existing track. Are there any reported problems of users switching from Tiger OS to Snow Leopard have problems when using Garageband? -Thanks, Travis