OK, I hav efound the setting to allow the higest graded response to be recorded... the problem is if you have 10 students sho have not created a response, and you want to edit all, with the goal of adding zweroes to repliues not recieved, then you get a lot of javascript errors telling you the automatic grading system is turned on.

Perhaps there should be a option to record zero after due date if response not received.....