I have had this issue for a while. No matter what I try, Flash movies are SLOW on my 1.5GHz PowerBook G4. I have 1.5GB of RAM, Leopard, and the latest Flash (Flash 9). Every video and game that I run in Flash is choppy unless I set the quality to "low". This occurs in Safari, Camino, and the standalone Flash Player application itself. Does anyone else have this issue, and does anyone know how to solve it?