I'm running a LXQt instalation where I've installed MATE. Having Openbox as choice as well, I've decided to give it a try. Found out that many entries in the OB menu do not work. They return something like «Failed to execute child process "wm-logout" (No such file or directory)» - this is the case for the "exit" entry, but happens similarly with some others.
The entry "restart" simply doesn't do anything. The same happens with some others.
I've tried shutting down the computer in the hope that in the next boot I'd get the initial screen where I can choose the desktop I want to use for the session, but the system memorizes the last session and automatically boots into it.
How can I leave OB and get back to the initial screen?