Tim Hunt

UPDATE mdl_config SET value = 0 WHERE name = 'debug';

Moodle does not support this sort of quiz at the moment. You will just have to work around it. Maybe make the quiz out of 50, so the score is reported as 27/50, which is slightly less confusing.

Yes, in due course, I am sure this new PHP project will be a better option. I just have not got around to trying it yet. It would be interesting to know how good it is.

Well, you could consider upgrading you Ubuntu install - if you are feeling brave. The one time I did a major upgrade of Ubuntu, it just worked flawlessly. I was very impressed. But still, it is the sort of thing where you should talk a backup first.

Anyway 6.06, that dates from about the Moodle 1.6 time. Moodle has improved a lot since then, I expect Ubuntu has too.

I think we are still at the investigating-the-problem stage. We don't really have enough information yet to say what is wrong in your database.

As I said above, the first thing to check is that the various quiz_ and question_ tables that you have in your database are the same (have the same names, columns, and column types) as you would get from a fresh 1.8 install. You can see the correct table definitions (in a slighly odd format) in mod/quiz/db/install.xml.