Hello to all, and first of all, thanks and congratulations to the developpers of Gmusicstreamer.
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I just started using GMB 1.1.9 under Ubuntu 12.04 and my problem is that my settings are never saved : each time I start again GMB (after a re-boot of the computer), it starts with the default settings (default layout for example) and I have to scan again the whole music collection again.

I have a config file in /home/my user name/.config/gmusicbrowser called gmusicbrowser.fifo but is is 0 bytes.
I have checked the file and directory permissions and they are read-write for my user and group.

Any hint what can be wrong ?

gmusicbrowser currently isn't session-aware, which means it doesn't know when you log off, and thus can't shutdown properly.
So currently, you should close it manually (or send it the Quit command) before shutting down the computer.
The auto-save plugin is also strongly recommended in case of crash/blackout.
Everything is saved in /home/my user name/.config/gmusicbrowser/gmbrc with multiple backups.