[Samba] idmap uid range missing or invalid

[MargoAndTodd]

Hi All,

What causes this error in /var/log/messages when
on XP-Pro client boots up?

winbindd[4041]:   idmap uid range missing or invalid
winbindd[4041]:   idmap will be unable to map foreign SIDs
winbindd[4041]: [2009/04/02 19:38:22, 0] 
nsswitch/idmap.c:idmap_alloc_init(820)
rn1 winbindd[4041]:   ERROR: Initialization failed for
alloc backend, deferred!

Many thanks,
-T