I posted on the wrong forum, didn't read the red writing!
I did an install and was not able to add news as admin. Several links on the left in admin panel required me to log in again, and users weren't able to sign up, giving the following messages:
On signing up and submitting:
Unknown column 'privilege' in 'field list'
After clicking verify link in email:
Unknown column 'active' in 'where clause'
So I did a re-installation.
Now everythng seems ok, but still needed to log in again when clicking the 'optimise tables' link.
Have signed up as a user and it seems I can add news, will try now.
But I still find it odd that admin can't add news?