Problem getting win95 machines to change password

[Ian Moore]

Howdy,
I'm running samba (version 1.94) on a FreeBSD 2.2.6 machine.
I've been playing around with changing passwords from windows clients.
The relevant parts of my smb.conf are :
# ENCRYPTION.txt, Win95.txt and WinNT.txt in the Samba documentation.
# Do not enable this option unless you have read those documents
;  encrypt passwords = yes
#Enable windows clients to change passwords
#unix password sync = true #? this isn't in the man page!
passwd program = /usr/bin/passwd %u
passwd chat = "*New password:*" %n\r "*Retype new password:*" %n\r
"*done*"
password level = 1

I can change password quite happily from a win311 client, but as soon as
I try on a win95 client, I get the message 'The password could not be
changed because the server does not support this function' or words to
that effect.
Does anyone have any idea what is going on here? I can't think what
would be different about doing it from one version of windows to the
other. I have tried with & without the password level setting, but I get
the same result either way.
Any help would be greatly appreciated.
btw, is there anywhere one can search the samba archives? It's a real
pain having to search one page at a time.
Cheers,
Ian