Woo Commerce product add-on

I have the WooCommerce Product add-on for a site. Since updating to 2.08 the woocommerce product add-on is not working in Internet Explorer; it’s fine in Safari, Chrome and Firefox. Although a required field the orders are going through and not stopping to require the customer to fill in the custom field. All else since updating is fine, I’ve got a child’s theme to twenty twelve. I’m not sure which version Internet Explorer they might be using. It appears to work in the latest one.

If there is php code that is necessary please be specific, I’m still learning php.

Thanks for any help.