Linux – Permission on a symlinked directory in a Samba share

I have a Samba share of my home directory set up as described here. On my Windows box I can access the share, open files and write to them. The server I am connecting to is an Ubuntu 12.04 VM running on Virtualbox.

In my home directory I have symlinked /var/www to ~/www:

charlesr@hicks:~$ ls -lad www
lrwxrwxrwx 1 charlesr charlesr 8 Jul 16 18:45 www -> /var/www

Even though the symlink is owned by me (charlesr), I cannot access it via Windows:

I've checked permissions on /var/www and that directory is part of the www-data group, which I am a part of:

charlesr@hicks:~$ ls -lad /var/www
drwxrwsr-x 3 root www-data 4096 Jul 16 18:13 /var/www

charlesr@hicks:~$ grep www-data /etc/group
www-data:x:33:charlesr

So what am I missing here? Why can't I access this symlinked directory that my user has permission to read and write to? I'm new to Samba so I'm hoping it's something obvious.