below is my output.�� looks like ive got an issue in my security area?

Load smb config files from /etc/samba/smb.conf
rlimit_max: increasing rlimit_max (1024) to minimum Windows limit (16384)
WARNING: Ignoring invalid value 'share' for parameter 'security'
Processing section "[printers]"
NOTE: Service printers is flagged unavailable.
Processing section "[print$]"
Processing section "[lspace]"
Global parameter guest account found in service section!
Loaded services file OK.
Server role: ROLE_STANDALONE
Press enter to see a dump of your service definitions

[global]
������ workgroup = RIMFALL
������ netbios aliases = ook
������ server string = %h server (Samba, Ubuntu)
������ server role = standalone server
������ map to guest = Bad User
������ obey pam restrictions = Yes
������ pam password change = Yes
������ passwd program = /usr/bin/passwd %u
������ passwd chat = *Enter\snew\s*\spassword:* %n\n *Retype\snew\s*\spassword:* %n\n *password\supdated\ssuccessfully* .
������ unix password sync = Yes
������ syslog = 0
������ log file = /var/log/samba/log.%m
������ max log size = 1000
������ load printers = No
������ preferred master = Yes
������ dns proxy = No
������ wins support = Yes
������ default service = lspace
������ usershare allow guests = Yes
������ panic action = /usr/share/samba/panic-action %d
������ idmap config * : backend = tdb

[printers]
������ comment = All Printers
������ path = /var/spool/samba
������ create mask = 0700
������ printable = Yes
������ print ok = Yes
������ browseable = No
������ available = No

[print$]
������ comment = Printer Drivers
������ path = /var/lib/samba/printers

[lspace]
������ comment = Lspace media share
������ path = /media/data
������ valid users = david, steff, tracey, smbguest, @sambashare
������ read list = smbguest
������ write list = david, steff, tracey
������ force group = sambashare
������ read only = No