I read previous threads concerning this and I thought this might have been fixed in the new releases. My theme has a habit of overwriting the functions.php so I found a plugin that still works with 3.8.1 and WooCommerce: WooCommerce – Autocomplete Order.
This seems to have resolved the issue. I found it after I posted the question, but I was hoping that there was a more direct solution without having to add yet another plugin.
Thanks. Impressed with the support!