samba - May 1998 - Windows NT 5.0 and Samba 1.9.18p03

Does someone know how to connect from Windows NT 5.0 to Unix box via
samba?  The same way of Windows 98 doesn't work at all.  I use Windows
98 and there is no problem to connect Unix.  Apparently
they use the different way to use the plain text password.
Thanks,

Hiro Katayama
Radiation Effects Research Foundtion
Hiroshima, JAPAN