Hint in case of Flash could not be started

This can have several reasons:

• pop up window asking for some settings: sandbox problem
• Note that Flash player should be installed
  • install the latest Flash plugin; the new version v2.1.x needs Flash Player 10 to support all features.
    Follow the link or use CHROME, which already has Flash Player included 
  • the link to the preloader.swf file is incorrect. If due to wrong parameters the preloader file cannot be found, that note about the missing Flash Palyer also will be shown
• wrong path to the megazine.mz3 file
  If the Preloader starts working but the book does not open, you most probably defined an incorrect path to that file or mis-spelled the name. Especially on a non Windows system be aware that lower and capital letters are interpreted to be different!
  If the path is a relative path (i.e. starting with "../" ) keep in mind that the reference folder is the one the megazine.swf file is located in; i.e. usually the megazine/ folder.
• If you see a lot of red text, your megazine.mz3 file most probably has a wrong XML structure or syntax.
  Do a validation with Validome, i.e. copy the whole content of the megazine.mz3 file into the "source code" box and let it validate. You'll get detailed guidance about what will be wrong
• If certain pages do not show, the link to that page will be incorrect, i.e. the path or name is spelled incorrectly or the file cannot be found at that location.
  If you added "console" to the plugin list and set at least errorlevel="ERROR", you can get detailed error messages in hitting the "#" key after Flash got the focus (click a button or left click into a page first).
  You also can use firebug or the JS console (if enabled in the index.html file) or a similar tool.