I cannot view the video demos in Office 2007. Just get blank window with
"done" at bottom. I tried all the troubleshooting steps to no avail. Also
got support from silverlight and determined it was working fine (though
whenever I go to this discussion group I always get that install silverlight
message at the top of the page).

Firefox is my default browser though have tried with IE-7 as default and
that doesn't work either.