After students took a quiz, I realized the point value for a question was wrong. I went into the quiz, changed the point value to the correct point value and went into speedgrader. First of all, in the quiz there, the point value for that question was not changed, even though I saved the quiz. There is a message at the top warning me that the quizzes need regraded, so I scrolled to the bottom of the first student and hit the regrade button. Nothing happened. Am I doing something wrong?