No sound with flash plugin

[Patrick O'Callaghan]

I use F8, KDE 3.5.8, Firefox 2.0.0.12. I have pulseaudio and the KDE
pulseaudio RPMs installed. Amarok, Totem, Mplayer, Vlc and Skype all
work fine.

I'm using flash-plugin-9.0.115.0 from Adobe, installed via Yum, but I
get no sound from Flash videos such as youtube.com.

Any ideas?

poc