I was listening to a CD (Yehudi Menuhin) on one F-8 laptop, where it worked fine (using amarok), and moved to another, apparently identical, F-8 laptop, and got no sound at all. I tried "killall -9 pulseaudio" and it worked perfectly. There seem to be a vast number of sound applications competing for use. What exactly is the relation between pulseaudio and amarok? I see on my KDE system I also have KDE=>Multimedia=>CD Player but I have no idea what application this refers to. Clicking on it does not produce any sound, in any case. KDE=>System=>Soundcard Detection seems to me completely useless. It either tells me that sound is working, which I already know, or else that it is not working. I cannot see what function this program could possibly serve, unless one has more than one soundcard, which surely is extremely rare. RealPlayer, mplayer, helix, amarok, KsCD, KMix - is there any end to this ...