we upgraded to the latest 2.3.2+ moodle (20120927) As soon as we upgraded, students can not take quizzes. when they click on the quiz, it shows to start attempt. Nothing happens when they click start attempt.

Other issues: in gradebook, when posting feedback, then all the grades in the gradebook become overridden... Making it impossible for students to upload assignments.

we are using Linux system and latest php

Please someone help!!!