Gradebook

This could be many different. Check the following as these are usually the most common.

1. On the Edit Quiz page (e.g. where the questions included on the quiz are shown), check to see what you have entered in the Maximum Grade field.
2. On the same page, check to see what you have each question marked out of. If they are zeroes, that means that none of the questions have any weight.
3. In the Gradebook, check to see if you have the quiz item locked. This would be on the Categories & Items page. If it is locked, grades won't be updated until it is unlocked.
4. In the Gradebook > Grader Report, do you have the grades overridden? They would be indicated by an orange tint to the cell.
5. If none of the above, have you tried running a regrade?

Happy oodling!