Because of server maintenance, of which we were unaware, a backup version of the website was running for most of yesterday (24 September).  The main effect of this was that our new video presentation facility was unavailable, for which we sincerely apologise.

The website is now operating normally but any changes made by members yesterday have been automatically over-written when the site was restored.  If you changed your password between 10 am on 24 September and 10 am on 25 September, you will need to do so again when you next login.  No other members are affected.  Please be assured that there has been no compromise of any personal or other information as a result of this intentional (but unannounced) technical procedure carried out by our website provider.  We are very sorry for the inconvenience.

If you require any assistance or further information, please email us at