Thanks to Kurtd_the_goat, we've been able to work out that the board itself appears to be functioning fine, but the server it is on, looks to have compatibility problems, affecting the functionality of the board.
As such, I'm left with no choice but to relocate the board and domain to a new server.
This shouldn't actually affect anyone here, except when the transition occurs. It will be like the start of this month when the server host installed the new server - there will be a couple of days of transition as your internet service providers are updated with the new 'location' of the otca domain.

When that happens, I will give as much warning as I can, and you can follow progress on the backup yahoo group site, if you experience any connection problems during that time.