[Samba] Win XP printing and 3.x

[Matthew Daubenspeck]

Our main print server is currently running samba 3.5.9 and serving quite
a bunch of printers to WinXP, Win7, and OSX clients. When I attempted to
upgrade to 3.6.8, none of the printers appear on the WinXP clients. Win7
and OSX continue to work fine. I noticed the initial 3.6.0 release notes
showed that the Spoolss code was "completely overhauled and refactored."

Do I have to do anything special to upgrade to 3.6.x? XP clients can no
longer see printers after the upgrade.

Thanks.
-- 
  Matthew Daubenspeck