X11 Connection rejected becuase of wrong authentication

[Lingli Ye]

Hi,
i'm using Cygwin under Win2000 to ssh Debian-Linux. I've changed die /etc/sshd_config file, to enable X11UseLocalhost no. But die Remoteserver said wenn launch xeyes:
X11 connection rejected because of wrong authentication.
X connection to localhost:10.0 broken (explicit kill or server shutdown) 
Pls help me.Thanks!
regards
lingli