title: Magento Persistent Shopping Cart disables Guest Checkout when session times out
body: <p>My customer is using Magento 1.6.2.0 with Persistent Shopping Cart and Guest Checkout enabled. We are encountering an issue that is seemingly caused by the Persistent Shopping Cart.</p>
  
  <p>The <code>persistent_shopping_cart</code> cookie times out after 2 weeks, the session after 1 hour.
  If the session is timed out and and the <code>persistent_shopping_cart</code> cookie is still present, the Guest Checkout option <strong>will not</strong> show up. The <code>Log In</code> and <code>My account</code> links are also hidden.</p>
  
  <p>I can reproduce the error easily by manually deleting the session cookie, without touching the <code>persistent_shopping_cart</code> cookie.</p>
  
  <p>One suggested fix was to set the cookie lifetime of the session to two weeks as well, but that doesn't sound quite right. I was wondering if there is a better solution out there.</p>