Thanks Corey.
I am now getting the error message
Warning: ignore_user_abort() has been disabled for security reasons in /home/sleeboot/public_html/phpgedview/includes/session.php on line 454
It appears I need you to unblock this feature, or possibly permit this and other PHP related features? Looking at the log it appears ignore_user_abort is a blacklisted function. It wasn't before. Is this because I was suspended for not logging in for more than 2 weeks, or because of the server changeover?
I hope you'll be able to get some sleep soon!