Internet Explorer AND Firefox - Availability: The product does not exist in this model.

[imoran]

I've added a test product (Polo Shirt) to my PrestaShop with 2 attributes - Colour and Size.

I've used the Product Combination Generator to set up all the combinations, yet when I preview the product in IE and Firefox, it displays "Availability: The product does not exist in this model..." - no matter what combination is selected!

I've attached a couple of screen shots of the Combinations Panel and and of the error, in case I've made a mistake - but I don't think so.

I've read several posts with users with the same error and some people have said it's an "IE thing" while others have said it's a case of not adding the combinations.

I really hope someone can help me with this please.

many thanks in advance!

Iain.