I have installed openSuSE 11.2 x86_64 with KDE 4.3 on a VGN_AR41L. I use firefox for web browsing and I have installed the add-on DownThemAll for download manager. In Windows when a download finishes the DownThemAll add-on produces a sound. This does not happen in openSuSE. My sound card works well because I can hear sound from Youtube videos.

Any advice?