Ask any user what one of the most difficult Flash technique to master is. Many will say the Preloader. In Flash 4, pre-loaders were difficult to coordinate. You had to specify the loaded frame, a loop frame, and more! In Flash 5, all it takes is one frame with a few lines of code to create a preloader.
This is a companion discussion topic for the original entry at http://www.kirupa.com/developer/actionscript/preloader.htm
