Any write access from the windows has been denied. smb.conf ... debug level = 1 security = user unix charset = ISO8859-1 socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192 ... [backup] comment = Disco para Backup. path = /backup/suporte available = yes browseable = no guest only = no public = no writable = no admin users = suporte force user = admin force group = admin valid users = suporte write list = suporte
fixed in the latest 3.0 tree. The patch is at http://samba.org/~jerry/patches/post-3.0.4/ (works for 3.0.5 as well).
sorry for the same, cleaning up the database to prevent unecessary reopens of bugs.