[sisyphus] X.org-7.0 + xauth + ssh -X problem

[Ivan Adzhubey]

$ ssh -ACX tako
Enter passphrase for key '/home/ivan/.ssh/id_rsa':
Last login: Thu Jan 19 15:34:57 2006 from ika.bwh.harvard.edu
/usr/X11R6/bin/xauth: (stdin):1:  bad display name "unix:11.0" in "remove" 
command
/usr/X11R6/bin/xauth: (stdin):2:  bad display name "unix:11.0" in "add" 
command