Agree with red-mike. always make sure to include the js files and possibly any other SWF files that may be linked to your main file e.g. for playing the video. If that's taken care of and the file still shows black, right-click on the Flash player and check for possible issues with hardware acceleration.
Now i have to ask. How do you export an swf from AE cs5?
I have been "Composition,make movie,export module flv with alpha".
I then have to place the flv into flash and convert to swf.
What am i doing wrong?
Thanks for the help!
I forgot the js file. Now it works
To export as an SWF, go to FILE -> EXPORT -> EXPORT AS SWF(or something similar)
You don't have to render it out like a movie.
Hope this helps
For CS5, that's it,thanks!
File-export-Adobe Flash Player (SWF)...
SWF is not available under "Pre-render" as there is no just "render", unless you first choose Add to render queue or make movie.