[sepay]

Whenever I started new document and created something, the command fscommand("fullscreen","true"); won't work at all.
However, if I opened up .fla files that I got from tutorials, then I added
fscommand("fullscreen","true");, it worked!

The same happens if I add fscommand("quit"); to a button in a new document, it won't do anything. And then if I do the same thing on .fla files created by someone else, it always worked the way it suppose to.

Is it something wrong with my computer/Flash?
Please help me...