no sound with real play on fedora 12

[Ralph Blach]

I have a fedor 12 x86_64 installion with and it is almost working perfectly.

Skype works, with a little help from google, and everything pretty much 
works. the 32 bit wrapped flash play works, and mozplugger works.

When I installed the lastest realplayer the video works great but  no 
sound comes out.

I get the message,

ALSA lib pcm_dmix.c:1010:(snd_pcm_dmix_open) unable to open slave

I am sure this is a library issue.  Does anybody have any suggestions?

Thanks Chip