[CentOS] SAMBA update appears to have breoken WinShare connectivity

We have a very old MS-Windows domain running on a Win2K advanced server. 
After the most recent update to Samba it appears that we can no longer connect
to shares on that system from our CentOS-6.4 workstations.  Is this a known
problem or configuration issue that we need to address through local
modifications or do we have to roll back to the older version to regain
connectivity?

Regards,
-- 
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James B. Byrne                mailto:ByrneJB at Harte-Lyne.ca
Harte & Lyne Limited          http://www.harte-lyne.ca
9 Brockley Drive              vox: +1 905 561 1241
Hamilton, Ontario             fax: +1 905 561 0757
Canada  L8E 3C3