Try this out:
(1) Go to Google News (2) Search for something (3) Then click on the "Web" link at the top of the page (4) Then click back to the "News" section (5) Clear the search box and hit "search news"
You will be taken to the Google home page, but it will show "News" highlighted in the top bar. A weird, small, but nevertheless, a navigation and usability bug.
Forum discussion at Google Web Search Help.
