I have Windows 7-64, so wanted to install IE9 Beta plus Flash Square. When I did that, I got IE9 in both places. That is, it installed in Program Files (where IE8-64 was) and in Prog Files (x86) (where IE8-x86 was). Now I no longer have any IE8. My only option was to use system restore, so I am back to where I was before IE9.
I would still like to test the beta, but want to know if I could install it in a third location, to retain IE8-x86, plus IE8-64, plus have IE9 Beta.
BTW, when I had IE9 for a short while, I could not load the American Express Credit Card website. Is this a known bug with this site and IE9?