Login as Admin and enable 'Allow theme change by URL in Theme settings page. Enable 'Static student' in Admin Grader settings Choose a course that has at least 5 students enrolled that will be listed in the Grader when viewed. Select 'Grades' from the Course Administration menu. TEST to see that the fixed column (Static students) columns rows and grader rows are not misaligned. With this page still open, add the following to the end of the course page URL in the address bar of your browser... &theme=base so that it looks similar to this... moodle/grade/report/grader/index.php?id=8&theme=base and again check that the columns rows and grader rows are not misaligned. Repeat 6 & 7 and TEST splash and mymobile by changing the URL.