Comment # 3 on bug 929565 from ill lume

It's a new 13.2 install, so the display would be set wrong by default then? I
also seem to get similar errors in cron as well:
** (zenity:912): WARNING **: Could not open X display
Unable to init server: Could not connect: Connection refused

(zenity:912): Gtk-WARNING **: cannot open display: 0:0
even after setting display to :0, which seems to be what it should be?