When graded items are disabled on the course page...

Our customers live in the gradebook.  When teachers disable graded items in a course (which is perfectly acceptable, since they are using vendor courses that have lots of graded entities in them) - in order for the gradebook to "jive" with the graded items no longer in play....another step is necessary.

This is from my colleague who solved this.

"When Moodle items are made "inactive" or are "hidden" on the main course page a second step is required to make the Gradebook calculations "jive" with the course items.
Following the steps below will change the total course points displayed in the % of Course Completed category.

1. After "hiding" items on the course main page, go to Settings > Course Administration > Grades
2. In Grader Report select list, choose Full View
3. Put a checkmark in the far right "Select" column for all items that are now dimmed ("hidden")
4. Scroll to bottom of the page
5. In the "Move selected items to.." select list choose "Move to Pretest (NOT Included in grade)"
6. Click Save.

If there is no Pretest category in Grades while in Full View, scroll to the bottom of page and click "Add category". Name the category "Ungraded or NOT included in grade) .Leave the default Aggregation method of "Simple weighted mean of grades" and Save the category." 

Moral of the story?

Moodle gradebook is complex and needs extra love and attention sometimes.