[Samba] samba and mac OS X

[mache at abcpages.com]

Hello!

I'm tring to run Samba on a mac 10.1.3, using package xamba from 
xamba.sourceforge.net (which is samba 2.2.3a) and I have the following 
error in log.smbd:
mbd/sec_ctx.c:initialise_groups(229)
  Unable to initgroups. Error was Input/output error
This error happens each time I try to access my mac from a windows XP or 
windows 2000. 

I'm not very familiar with mac X internals but I see that it uses some 
kind of LDAP wich I can access and modify using an applications called 
netinfo. I've seen some references to negative numbers used as user id, I 
changed all uids to positive but I still have this error. Anybody has 
any sugestion?

Thank you,
Nicolae Mihalache