I was trying to use synaptic on my Debian GNU/Hurd with openbox, but when I launch it from the terminal emulator it doesn't start giving this message: "sudo synaptic Invalid MIT-MAGIC-COOKIE-1 key ** (synaptic:2430): WARNING **: Could not open X display Invalid MIT-MAGIC-COOKIE-1 keyUnable to init server: Could not connect: Abstract UNIX domain socket address not supported on this system (synaptic:2430): Gtk-WARNING **: cannot open display: :0"