I've found that my site is showing duplicated content, I think it was when I installed Pathauto. The nodes are not duplicated though but seems to be multiple aliases.
I've since tried using Global Redirect but it hasn't solved the issue. And even worse, some items are showing up three times now!
http://biosphericproject.php5.demo.faelix.net/content/what-we-mean-forest-gardening-1 http://biosphericproject.php5.demo.faelix.net/content/what-we-mean-forest-gardening http://biosphericproject.php5.demo.faelix.net/content/what-we-mean-forest-gardening-0