Error message with pink background.
"You have entered data outside the normal sequence. This can occur if you use your browser's Back or Forward buttons; please don't use these during the test. It can also happen if you click on something while a page is loading. Click <strong>Continue</strong> to resume.
However on my PC, there is no <strong> button - but <Ctrl>Continue does work, as does just Continue.
But on clcking the link "More inform...", the page is missing.
It seems that this error catching has become an orphan.