These windows are actually pop-ups, and if you have any kind of pop-up blocking software running then they will not open. Help disabling common pop-up blockers.
Disable any pop up software you have including:
If you have a firewall running, or you use Norton System Works, you must add http://webct.victoriacollege.edu to your accepted sites list, or else disable the software. Also, make sure you do not have any third party toolbars (e.g. weather bug...etc) running by going to View, Toolbars, and un-checking them.