Missing answer boxes or text? Blank page won’t advance? Questions already appear to have an answer? Unable to type or select and answer? System freezes or does not load all content on the screen?

This is a symptom of an invalid session file. At some point in the recent past, the student’s lesson was interrupted without properly exiting.  The software saved their place to allow students to resume their lesson at the place where they were interrupted.  This works fine most of the time, however, occasionally the copy of the test saved for them is corrupted resulting in the problems described.  As the teacher, you can clear out the broken file and allow the student to continue.  To clear your invalid session files:

1. Go to intvla.com
2. Click on “Check Browser Settings”
3. Click on “Remove Invalid Session”
4. Enter student username and password
5. Click the “Next” button
6. You should receive a message, “Successfully removed invalid session.”
7. Repeat steps b through f until you receive the message, “We are sorry we are unable to remove a session for that login name.”

Please note: IF the student was in the middle of a test or quiz when the error occurred, they will need to start the test or quiz over.