What Causes a Black Screen When Students Open Books?

If students see a black screen instead of the text when opening a book, have them follow these steps:

  1. Check to see if the student's browser needs to be updated to the current version. To see which browser version you're using, go to
  2. Clear all cookies and the cache in the browser.
  3. Make sure the browser settings allow popups and redirects.

If you still see this problem, call myON support at 1-800-338-4204 or send an email to

If you see a loop in which the page keeps refreshing, the computer's date, time, and/or time zone may not be set correctly, which can cause problems when myON checks for inactivity. Check the computer's date and time and the time zone setting and make corrections as needed to solve this problem.