Edit:
Now that I look closer I guess the posts are more of a very very light gray as opposed to white.
I think that gray color could do to be a little bit darker and then things would probably be ideal.
![Wink ;)](./images/smilies/wink.gif)
Or maybe the top part and bottom part of the board where it has the "this day in history" and the "general board" etc parts could be a different color instead of white. Then you could leave this light shade of gray but it wouldn't seem so bright because it would be surrounded by a darker color.