Additional info: I am now pretty sure, that indeed is a timing problem, not a rights problem.
Why? Well, if I start the computer and start LXDE, nm-applet says: NetworkManager not running (however, it is running!). Simply stop LXDE and start it again, so voila, everything is working well. That let me to the conclusion: Something is not quite starting well at boot, maybe NetworkManager is still not available or still starting in progress, at the time, nm-applet is starting. But when you do this manually in the right time: Networkmanager -> LXDE -> nm- applet, this works. Would be nice, if you could take care of this, maybe this might also fix other bugreports. Best regards Hans
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