This is happening on multiple users "suddenly." In the last week or so, we've
had multiple contribute 3 users run into this issue. When editing a page, the
user opens up the link property dialog window on an existing link to an
external site. Once there, they paste the new url in and hit the refresh button
to see the thumbnail version of the webpage. Then BLAMO! - multiple IE browsers
start opening and basically locks the machines until rebooting.