samba - Sep 2004 - Samba 3.0.5 error

Hi,
I have a Samba 3.0.5 compiled running on Sol-2.9. I did see this error when my
users were not able to connect to anymore shares?
 
ERROR: Failed to initialise locking database
Can't initialise locking module - exiting
 
 
Anyone can show any pointers, direction to this is a great help
 
Thanks
Chetan