Settings not stored after reboot in Ubuntu 12.04

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http://askubuntu.com – if I save some configurations like icons on up bar, or gedit settings like numers in each line, or any system setting like brightness and lock, any configuration is restored after reboot. I don't know why that happens... It can be a problem of gconf-editor, compiz or something, but after reboot or close session, my configurations get restored to default. Any help? (HowTos)