I’ve been changing the setting on the Odtaa files. The changes just weren’t happening.
Swear, swear, swear.
Spent a couple of hours changing file permissions, reinstalling the theme, checking my other sites seeing if they had the same problem – they didn’t.
Curse, curse, curse.
Changed browsers.
No, No, No
Then I realised I’d installed WordPress Super Cache
http://wordpress.org/extend/plugins/wp-super-cache/
which I now know is a really effective package.
Don’t leave home without it, but deactivate it before updating your site.