Pclinuxos gnome 25009 sound preferences
Typing 'alsamixer' in a terminal does in fact give me an applet for adjusting sound, but I don't see any way there to change the login sound. There is also a volume control applet on my panel, with 2 headings 'Playback' and 'Sound Theme' , but still no way to alter the login sound, or any other system sounds.
The problem appears to come from the latest upgrade adding a folder 'freedesktop' with a set of '.ogg' files to /usr/share/sounds (desktop-login.ogg)is the culprit in my case. These '.ogg' files replace the original '.wav' files which are still in /usr/share/sounds, but I haven't worked out how to get the .wav files used instead of the .ogg ones. But all this shouldn't be necessary. Before there was an option in "System>> Preferences" where you could change the system sounds. Now there isn't.
Many thanks for your help/interest.