Here is my (rather long) Beta suggestions and Bugs report. 
First of all: Amazing work on the new version. I LOVE it! 
1) The warning text could be better visible, maybe colored or underlined. 
2) The announcements are off the screen in the latest firefox version.
3) When entering http://beta.online-go.com , one lands at the page “/play”. I think “/overview” is better suited as a landing page, because it gives a better overview and choices at who’s online and what to do next.
4): This sidebar is not working in latest firefox, I can only scroll with my mousewheel:
5): When removing custom moves on a demo board, the number stays:
6) Sometimes, the space between the button and the message changes for no apparent reason: (Compare to “1)” )
