I was installing Flash 11 on my Windows system, and the link to "Terms of Service" did not work. The link went to a list of Terms documents for several versions of Flash Player, but Verson 11 was not listed. So I could not truthfully check the box saying that I have read and agree to the Terms of Service. I had to click on "Quit".
I came here for same reason. I found the Flash 11 link (had to scroll down to bottom of linked page and search) but when I clicked on it, page was blank and locked up my Firefox. Had to use Task Manager to get out.