Steps to reproduce: 1) Go to the link 2) Scroll down Expected result: As soon as you've scrolled enough, the comment form should follow the page Actual Result: The form is going up Other browsers: FF3: OK IE7: OK Opera 9.6: OK Note: There's a problem with repainting. I'm not sure if it's related.
As of r41242, the form is going the right way but there is still a repainting bug.
I've filed bug 24200 for the repainting issue