PLEASE CONTACT CAMPUS SECRETARY IF YOU ARE LOCKED OUT OF YOUR GRADE BOOK! 

INSTRUCTIONS FOR CLEARING CACHE
At the very top right of your screen there are three little dots right below the X to close out your screen.
Click on these and go to settings. Then go to Security and Privacy You will see clear browsing history...click this and make sure on the drop down box it says all time...make sure you clear history, cookies and cache..three different things should be checked.  At the bottom, hit clear data.  This usually doesn't take long to complete.