By Seth Rosenblatt on 30 January 2009 15:24
Compatibility View is a toggle button that appears on the toolbar when some elements of a website don't render properly. It automatically forces a change of rendering engine from IE 8 to IE 7 to keep the page looking as it should.
Here, you can see that although Microsoft's own home page views correctly, Google.com and even Download.com both get the Compatibility View treatment as indicated by the presence of the broken-page icon.
Photo credit: Seth Rosenblatt/CNET Download.com
