Thanks for all the input everyone,
Basically I trashed the smb.conf and the folder I wanted to share, restarted the machine, re-wrote the smb.conf (again) and re-made the directory and set permissions etc, restarted the machine and all is well!
Thanks all for your input it has helped me write an improved smb.conf on my original attempt!
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Regards,
James ;)
Charles de Gaulle - "The better I get to know men, the more I find myself loving dogs."