Just upgrade from 1.4.5 to 1.5
But now theres a problem, when someone tries to open a Quiz.
I can edit some quizzes and get listings but no access, the error is:
Fatal error : Cannot instantiate non-existent class: in D:\simer\moodle\lib\pagelib.php on line 67
I reinstalled 1.5_stable on new directory but the problem is still there.
Got any ideas?