[libvirt] sound does not work for me

I must must be doing something wrong because all the messages, etc. I have found says that sound works for guests. I let the guest's virtual sound device default to ES1370. I have tried f11 32 bit, f11 64 bit, and win2k and sound just does not work for any of them. I tried this with F11 64 bit host (libvirt 0.6.2) and a different F11 64 bit host with preview packages installed (libvirt 0.6.5) ... sound works on each of the host system but does not work for an guests. With a F11 64 bit guest, the sound preference applet shows the output device os "null". Also, doing "lspci" shows NO sound device. OK, what is going on? Gene