title: Magento CE 1.9.1 Guest Login "Please make sure your passwords match" error after upgrade from CE 1.9.0
body: <p>I am developing a Magento site and recently upgraded from CE 1.9.0 to CE 1.9.1. I have noticed that I now have an error when I attempt to checkout as a guest. </p>
  
  <p>1) I select the guest checkout in step1<br />
  2) I fill out the form in Billing Information and leave "ship to this address" checked<br />
  3) When I continue I get the popup box with the "Please make sure your passwords match" error</p>
  
  <p>In System->Config->Sales->Checkout I have the following</p>
  
  <p>Enable Onepage Checkout = Yes <br/>
  Allow Guest Checkout = Yes</p>
  
  <p>I have looked at a few suggestions from a Google search, including results on stackoverflow, and although they list the issue in their subject they do not seem relevant. The solutions I have seen seem to relate to passwords not matching and validation issues. </p>
  
  <p>Can anyone suggest a solution to the guest cart login issue that seems to have popped up since the upgrade?</p>