It's changing color only while I am on the boards. As soon as I leave, it goes back to the original color.
It does that to me, too, Meadowrose. I think that has to do with remembering cookies on what you've looked at and what you haven't. I erase all my cookies whenever I log out of the Internet, but while I'm on (which is mostly all day), I can see new posts at a glance.
