Up until a day or two ago I had a standard Lubuntu 16.04 desktop running under TigerVNC 1.7.0. Now the desktop background is just grey instead of the Lubuntu wallpaper and right clicking it displays a menu that I don't recognise instead of the Lubuntu one, but I guess it's the openbox one. Also pcmanfm will not start. I haven't manually changed anything so I assume this is the result of a recent update.
My .vnc/startup is:
#!/bin/sh [ -x /etc/vnc/xstartup ] && exec /etc/vnc/xstartup [ -r $HOME/.Xresources ] && xrdb $HOME/.Xresources xsetroot -solid grey # poll for mail every 2 minutes fetchmail -d 120 & #disable screensaver xset s off exec dbus-launch --exit-with-session lxsession -e LXDE -s Lubuntu
How do I go about diagnosing the problem and restoring the default Lubuntu desktop?