Out of curiosity, do you find the same limitation if you use the web viewer to open the page?
And if you were to paste this text directly into Internet Explorer 9's URL box, does it work?
(This may help determine where/why this limitation exists)
I have not tried the web viewer but I did try pasting the link directly into the URL box and it worked fine. This is what led me to conclude there is something going on with FM and W7 since the same script works with XP.