Ask HN: Do up and down arrows not working in GMail now?

Why do website designers feel the need to re-map basic keyboard binding? Google is the worst offender. Google Instant remaps the up/down arrows to its weird result navigation, completely destroyed the most basic, most used web page navigation. My blood boils every time I use Google on a new machine since Google Instant is on by default. Search is not useful until I disable Google Instant completely.

Now up and down arrows are not working in GMail? Why is wrong with you, Google?