alek wrote: Thank you very much for your help, but I have already done 3 re-installs for this project and I am giving-up CB. I happily used CB back in 2005, but it does not seem to me to be ready for Joomla 1.6 and it is the version I'm using.
I'm reluctantly trying Jomsocial in which I feel a bit "en prisoned" but which at least does not break the site.
I may not adopt it in the end but I do not see many alternatives.
Thank you again,
Alek

Can you please PM me backend access and I will give you my opinion.

Got your PM - thanks.

Installed CB 1.4 and then created a new CB field just fine.

I got no error at all.

Take a look.