Issue Resolved: 30th December 08:00
Rebooting the server yesterday has fixed this database issues. We are keeping a close eye on the software to see if we can find out what caused the issue.
Yesterday the WordPress development team also released a security update for WordPress 3.0. We have been busy updating your sites this morning and that maintenance has been completed successfully. Those of you still on the WordPress 2.8 & 2.9 branches will be contacted separately next week to discuss ongoing support.
