[Samba] problems with making Samba authenticate off of domain server

[Eric S. Johansson]

starting from here:

http://us1.samba.org/samba/docs/man/Samba-Guide/unixclients.html#wdcsdm

I follow all the instructions including using the samba configuration 
found in:

http://us1.samba.org/samba/docs/man/Samba-Guide/unixclients.html#ch0-NT4DSDM

making obvious changes for workgroup, domain etc.

The join succeeds but the wbinfo -u test fails.  yes, I verified that 
all the demons are running and logs show nothing except the startup 
messages.

Any ideas?