Hi Marilyn, Occasionally, you'll find that the list of updates for the program are behind that blank window.
If you do an alt+tab, and don't find the actual window you're supposed to be dealing with, press the cancel button, and restart the check for updates button again. At that point, the list of updates will be there. Victor For answers to frequently asked questions about this list visit: http://www.jaws-users.com/help/