title: Magento currency switcher not working
body: <p>I have a Magento site but the currency switcher does not calculate the price of the products correctly in the cart. It doesn't seem to change from the base currency. The tax calculated is correct in the case of the base currency, but the subtotal and grandtotal are not correct when changed from it. What could cause this?</p>
  
  <p><img src="https://i.stack.imgur.com/B06fb.png" alt="correct with USD">
  <img src="https://i.stack.imgur.com/w7UB4.png" alt="incorrect with JMD"></p>