I'm on this page: http://hnwatch.scalien.com/welcome.html http://hnwatch.scalien.com/welcome.html First, it won't let me use "old-gregg", then I use "oldgregg"

I'm on this page: http://hnwatch.scalien.com/welcome.html http://hnwatch.scalien.com/welcome.html First, it won't let me use "old-gregg", then I use "oldgregg", I click "Register and Login" and nothing happens. Edit: hitting enter on that form works. I guess the bug is that you don't re-enable submit after a user corrects his input.