Unread Post Problem
 

I'm not sure if this is just vBulletin, or a slight error.

So, I'm on the index, and I notice a board has a new topic/post. So I go to that board, click on the topic / go to the new post.

I read it, then I always to back to the index. However, when I go back to the index, it still shows the post unread. I have to go back to the topic, then back to the board, then the index for it to register I have read that post.

Anyone know if this is an option? Default? Or a problem?

Thanks,
-Angry_sun