Help with SSL issue - Add to Cart

[totallybike]

Hi all,

I have just moved my shop from one.com to Vidahost (I cannot recommend them enough, they were amazingly helpful and offer great packages and services).

Anyway, I've added an SSL certificate to my site now and have ironed out a few problems, mostly with the help of Vidahosts excellent support!

The only issue I have is that when a customer clicks "Checkout" the cart is secure (https)
But when I click "Add to Cart" the checkout does not go secure (stays as http)

I have temporarily disabled the 'Add to Cart' button from BO and if a customer clicks on it then it adds to cart and returns them to the viewed item. As most of our customers only buy one item I'd rather it took them to cart summary when they click 'Add to Cart', but this need to show as secure. Can anyone help with this!

I'd appreciate any help
Gary