We have the cart running module on our site, but have an issue with the Tab Index Values in checkout.

Problem we have is that when you get to the the shipping step of the checkout, the Tab Index Values for the default listed items are screwy, with the State/Region having an index of 10 putting it well before other items on that page.

That stopps the TAB button working as expected. 

We would suggest that there is no need to use tab index values, and removing all of them will have the same effect as putting in a correct value for State/Region. As users will be expecting to update in the same order as the stack layout.

We fixed the fault at our end by editing the step1.ascx page. But would rather you fix it so we don't have issues in the future.