[Samba] Windows losing EnablePlainTextPassword settings after reboot

[Biron Laurent-R01199]

Hi,
We have been experiencing problems where workstations (Win2K SP3, latest updates) have their
registry setting for EnablePlainTextPassword set to 0 after reboot.
We have Samba 2.27 and a pilot of Samba 3.0
Could it be one of MSs sercurity updates ?
Has anyone seen this before ?

Any input would be welcome !

Thanks,

Laurent Biron 
Motorola.