RealPlayer10 no sound

[Barry Yu]

F8 64bit with intel cpu, realplayer10 plays video without sound, same system both xine and mplayer working with sound.
have noticed that in Preferences-Hardware-Audio driver showing ALSA, click on drop down arrow showing OSS and ALSA.
How can I completely remove realplayer10 from the system so I can install realplayer 11 without conflict between realplayer10 ?

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://listman.redhat.com/archives/fedora-list/attachments/20080410/1d2e51d3/attachment-0001.htm>