The message from Facebook: You may want to upgrade your browser. You’re using an old version of Internet Explorer to browse Facebook right now. Facebook will work better for you if you upgrade or switch to another browser. (Internet Explorer 8, Firefox, Safari, Google Chrome)
The message from YouTube: We will be phasing out support for your browser soon.
Please upgrade to one of these more modern browsers. (Google Chrome, Internet Explorer 8, Firefox 3.5)
So I upgraded the laptop to IE8, but I kept the desktop browser on IE7. Why?
(The Peacock is very, very persuasive.)