For classmates using Internet Explorer, you'll have to change the security setting for the Internet
to 'allow websites to prompt for information using scripted windows'

In IE 8, this is accomplished by the following steps:

1) In Internet Explorer, click on the Tools menu
2) Choose Internet Options in the Tools menu
3) Click on the Security tab
4) Make sure the Internet zone is highlighted near the top
5) Click the 'Custom Level' button near the bottom
6) In the list that is presented, scroll to fourth choice from bottom
7) The choice is 'Allow websites to prompt for information using scripted windows'
8) Click on the 'Enable' radio button
9) Click 'OK'
10) Click 'Yes'
11) Click 'OK'

When you finish the above, go back to the previous page (use arrow at the top left of the IE screen) and
then choose the "Click here for classmate info" link.

You may undo the above if you wish when through viewing the classmates info.