Products Not Displaying Under Categories

[Essus]

Hi Guys,
 
Bit of a prestashop noob,
 
I have just rebuilt my store from scratch after adding my first product it will not display under my categories i get the page displaying "There are no products in this category".
 
But it shows the product under that category in the catalog side panel.

 

pictures attached

 

 
 
So i thought may be it's just that product so i added a second exactly the same issue.
 
Have i not set the product up correctly or is it something else.
 
Gareth