I sell services and items on my site. Services should never be taxed. Items should only be taxed if they ship to Nevada. Right now, items and services sold to any state other than Nevada works fine. If I try to purchase a service in Nevada that allows me to. As soon as I add a product and it asks me to "calculate shipping price" and I put in Nevada and my zip of 89129, it won't bring up the rest of the billing and shipping fields. What do i have to turn on or off to get the tax to work correctly?