title: Magento 1.7 "Invalid Shipping Method"
body: <p>I'm hoping that someone here has come across this error before. I can't be any more specific than I'm going to be because I don't know exactly which bit of code is causing this error.</p>
  
  <p>On <a href="http://www.gomediadev.co.uk/mycheapsupermarket/" rel="nofollow">http://www.gomediadev.co.uk/mycheapsupermarket/</a> - when trying to check out with ANY shipping method (currently set to free shipping) you receive the error "Invalid Shipping Method". I've even resorted to doing a global 'Find' for the term 'Invalid Shipping Method' and commented out any instances, however the error still persists. I'm coming to a bit of a brick wall now and was hoping someone may be able to shed a bit of light on this.</p>
  
  <p>Many thanks in advance.</p>
  
  <p>Tom</p>