I restored the forum header one by one, each time saving it and checking if it was OK. Now it is EXACTLY the SAME as before, line by line, contents by contents (I saved the original before I deleted them).
Only difference is the change: two e-mail addresses in the header.
I strongly feel that the first change was not saved properly in your server. The 2nd time save came back as "security violation", as I informed you earlier. This is another reason I think something was wrong with your sever in save.
The fact that it is now OK with the same lines and contents shows that nothing was wrong in the header including meta lines.
In any case I wasted the entire afternoon just to have the same thing back again ...
Nobby Miura