Magento Minimum Quantity Error

I have taken over the administration of a Magento site.

For one of the products I have created I get the error "The minimum quantity allowed for purchase is 0.1" when trying to purchase under a kilo form the frontend (a kilo is 1 in the system). So even though I am choosing a quantity that is equal to or above the 0.1 I keep getting the error for that product. I have attached images that show how I have set the minimum quantity in the backend for the product.

Link to product page:

http://www.engelskthedepot.dk/index....aer-lemon.html

Attachment 3611Attachment 3612Attachment 3613Attachment 3614

Best regards.

Christopher

Try to set "Qty Uses Decimals" to Yes for that product.