Tried those links. I have recently upgraded to osx 10.4, but have checked the macromedia site, as it's flash, dreamweaver and fireworks 2004 that won't work, all my other applications are fine. According to the macromedia site there are no compatibility issues, but you need to re-activate their software after installing osx 10.4. What does re-activation mean? I have just tried reinstalling all the macromedia software, but it still won't open.