I have been looking into the load saved survey problem and it seems that if I remove the javascript I added to the welcome message to rename the button 'load unfinished survey' to 'load saved survey'I can load the 'load survey' page:
Please see below script
<script type="text/javascript" charset="utf-8">
$(document).ready(function(){
$('input.saveall').attr('value', 'Load saved survey');
});
</script>
I should perhaps look into changing the language file instead as this js seems to be causing a problem.