I have just been informed that the answer to the forum's encoding problem has been found. To rectify to problem it will require a database upload from the back-up of the website from around the 20th of last month. This will result in some downtime of the forum, probably later today or tomorrow.
The upshot of this further update is that it appears likely that everything posted in the last three weeks will be lost.
I appreciate the frustration to you all that the above loss will cause, and believe me, I'm feeling it too.
With sincerest apologies.