For those that are having problems with the "brightness", we're looking into it.
In the interim, here is what I received from a friend:
Ok...I'm probably the first one who noticed the bright white while we were in sandbox mode. I just downloaded this and I have to say that it does make a difference. Though I did adjust the settings on it a little as they are quite dramatic.
Why not try to dim your computer light? You should have a button right on your keyboard or on your control panel. Very easy to do and it will probably help you.