Hi forgive me if this is not where this post goes - 1st timer. I am trying to purchase parts from the store but when I try to check out, it displays a message: " Unfortunately one or more items in your cart can't be shipped to your location. Please choose a different address." I have tried my work address but get the same message; I then tried just ordering a Gantry plate but still get the same message. Is this a bug? Brilliant site BTW!!!