Thank you - have managed to get update and the error message has disappeared when compiling the Checkout wizard. However when I try the cart out on the live site I get as far as the cart through a test button on the bottom of the page but when I click on continue I get lots of error messages showing on the top of the page. This is the URL: www.oldtheatreposters.co.uk/c.php if you would like to try it and see the error messages that come through. I would be really grateful.