samba - Dec 2011 - My smb.conf file works on Fedora 11, but not Fedora 16

I setup a new box with Fedora 16.  I have Firewall and SELinux disabled.  I can
ping the IP and host name from the outside.  I copied the smb.conf file from a
similar box that was running Fedora 11 to my new box.   When I try to browse the
shares on the new box, I keep getting rejected "cannot browse the
shares".  This happens whether I browse from a Windows or Linux system.  
What am I doing wrong?  Here is the smb.conf file that was working in Fedora 11,
but not Fedora 16.

[global]
   workgroup = AUSTIN
   server string = SQABVT Samba Server
   log file = /var/log/samba/%m.log
   max log size = 10000
   security = share
   socket options = TCP_NODELAY SO_RCVBUF=8192 SO_SNDBUF=8192
   local master = yes
   os level = 1
   domain master = no
   preferred master = yes
   dns proxy = no
   password level = 8
   username level = 8
   wins support = yes

[homes]
    comment = Home Directories
    browseable = yes
    writable = yes

[automation_logs]
   comment = Logs directory
   path = /home/sqa/bvt.new/logs
   browseable = yes
   writeable = no
   guest ok = yes

The smbd.log file on the Fedora 16 server keeps spitting out the same message,
which I don't understand - "[2011/12/20 12:49:41.855121,  0]
smbd/server.c:1101(main)
  standard input is not a socket, assuming -D option".   Any ideas what I
can do?

Thanks