[HECnet] CREATE/TERM gives strange error messages about protocol versions...

[Sampsa Laine]

Before this, I did an "xhost +" and ssh'd into RHESUS with X forwarding on.

{RHESUS$} create/term
X11 connection rejected because of wrong authentication.
X connection to _WSA48: broken (explicit kill or server shutdown).
X Error of failed request:   BadConnection (fatal error on display connection)
  Major opcode of failed request:   1 (X_CreateWindow)
  Serial number of failed request:   0
  Current serial number in output stream:   0
%XLIB-E-ERROREVENT, error event received from server
Xlib: client uses different protocol version (11) than server (0)!
%DECW-E-CANT_OPEN_DISPL, Can't open display

Any idea what is causing this?

sampsa