Firefox playing flash movie doesn't show up in Ubuntu 9.10 Sound Preferences

"I think it might be a permission issue. Just make sure root and your username(using jdoe as example) is associated with the following groups in /etc/group:

audio:x:29:jdoe,pulse
pulse:x:121:root,jdoe
pulse-access:x:122:root,jdoe

I guess you could also do the following from the Users and Groups GUI but I just can't find it on my OS(another issue to fix)."