I’ve been doing some server side interaction with Flash CS3 today and had notice that the cache wouldn’t clear automatically… Too bad for debugging. The solution is as old as Flash itself: just give a random number to the URL called (http://domain.com/test.php?1423) and Flash will reload the files completely.
My test of today was about loading some MP3 and I noticed another bug with the Flash Player 9: the MP3 are still playing too slow or too fast depending of the compression chosen for the MP3. One more time the solution is old enough to be known: your compression rate must be a multiple of 11025Hz to play correctly.
Ahmet