Prestashop doesn't translate strings
It had to be prestashop the first to make it to this blog!
Version 1.6 is full issues and deosn't stop giving headackes. Don't get me wrong I do think it's a good CMS for shops, but ONLY for online shops, anything further is a sea of pain.
On this ocasion prestashop didn't translate strings from the front page module featuredproducts or block cmsinfo.
I found the solution here:
http://www.ekumba.es/blog/problemas-con-traducciones-de-modulos-en-prestashop/
It's a simple as adding the module ID to the l s statement so prestashop finds where the translation is related to.
For instance:
{l s='Featured videos'} has to become {l s='Featured videos' mod='blockcmsinfo'}
For a normal procedure on translating prestashop strings this a good guide:
http://www.leotheme.com/blog/prestashop/272-how-to-translate-prestashop-1-6-theme-and-modules.html