Flash 9 does not work with Firefox 2.0.0.3 in my system. The video plays OK but
there is no sound. Everything works OK (video and sound) when I use the files
(flashplayer.xpt and libflashplayer.so) from Flash 7.

My system has an AMD Athlon 64-bit CPU (cpuid is x86_64), my OS is Redhat
Fedora Core 3 Linux (x86_64 version), and my plugin files are located in
~/.mozilla/plugins.