Woohoo !!! My sounds problems are solved by applying a patch to alsa. See: - https://bugtrack.alsa-project.org/alsa-bug/view.php?id=2104 - https://bugtrack.alsa-project.org/alsa-bug/view.php?id=2378 (the patch) Thanks all for helping me, especially the unfatiguable pithball, Nigel and of course I have to look up the name of the guy who wrote that patch ;) JeeBee.