default attribute images

[spaceman]

When landing on a product page, visitors to my site can currently see all images for a product, including those for various colour attributes. An example can be found at:

 

http://cozibag.co.uk/canvas/17-slab-lounger.html

 

But I only want them to see the images of the default colour. On the page above, I want them to see just the 3 images for the default colour 'Slate Grey' when they first land on the page. (It works fine once a colour has been selected).

 

Is the current situation standard behaviour of Prestashop or am I missing something? Is there anything I can do to fix it?

 

Thanks

Scott