Hi list members, I have not used X11 over ssh for years now. But today is the day! And it does not work.... The remote console tells me 'Xt error: Can't open display: :0'. X11Forwarding is enabled on client and server, 'xhost +' on the client, DISPLAY is set. IPv6 is disabled on both ends with sysctl and in sshd_config. Client runs with xfce. What did I miss?