The IE version is 9.0.8112.16421. I haven't found a solution but I did
find a work arround. There are (2) issues. If you have any program loaded on
your computer that lets you copy video from YouTube (i.e. Real Player),
APRS.FI won't display the map. Also, If you have your tracking protection set
to block web site tracking, the map won't display. Intrestingly enough,
Firefox is not bothered by either of these. I haven't tried it on Chrome. If
you encounter either of these problems, you will probably need to reboot after
making the changes.