From the Kubuntu Forums: http://www.kubuntuforums.net/showthread.php?56855-Qt-4-8, http://www.kubuntuforums.net/showthread.php?56931-How-To-Fix-silent-notification-sounds and http://www.kubuntuforums.net/showthread.php?57216-No-system-sounds.
From the Kubuntu Forums: http:// www.kubuntuforu ms.net/ showthread. php?56855- Qt-4-8, http:// www.kubuntuforu ms.net/ showthread. php?56931- How-To- Fix-silent- notification- sounds and http:// www.kubuntuforu ms.net/ showthread. php?57216- No-system- sounds.