http://img360.imageshack.us/img360/8383/asdjg8.png

New? I am seeing this on FF but can't reproduce on other browsers. I would take a look at the cookies but a bit busy now.
Here's the JS file it uses.
http://www.google.com/extern_js/f/CgJlbhICdXMrMAo4DUALLCswDjgDLCswFzgBLCswGDgDLCswIDgALCswITgDLA/_FmnEYlorJo.js

Maybe a test? Can't see this with FF...