Breakage in X11 over ssh tunnel

[Randy Bush]

>> i can deal with the -Y or hack my ssh_config.  but i have some
>> windoze users who now seem unable to get in.  they whine
>>> SSH Secure Shell: "Authentication failed. Most likely the password yo
>>> supplied was incorrect.  The user name might also might be wrong, or the
>>> account might be disabled."
>> any clues?
> get an SSH client that supports keyboard-interactive authentication.

in fact, recent reports are that the putty client works and ssh
secure shell does not.  but i don't understand _why_.  can you send
clue?  thanks.

randy