Hi!
Since few hours, I can't change the Windows Decoration. Before I had my own black theme and after a reboot, all the Windows Decoration disappeared, and I wasn't able to use my keyboard shortcuts.
I can't change the "appearance" with lxappearance, but I cant' change the Windows Decoration with obconf. If I tried to change the theme in obconf, i get a error: " An error occured while saving the config file /openbox/lxde-rc.xml". I don't know why obconf try to open this file!
Before reboot my laptop, I've just upgrade packages(but don't remember what packages have been upgraded).
Thank you for your help!