That's exactly what mine does. The first one on the list, the top email, is the newest. However, there are another 3 emails that came before that email, which are still unread. I want to read all of my mail chronologically. If someone sends me an email with a picture, then another email talking about the picture, I want to read the email containing the picture first. It doesn't happen often, but occasionally I open and read an email that doesn't make sense without the context of the previous email. If my inbox were empty (except for unread emails), it wouldn't happen, but I haven't had my inbox completely empty in a long time.
I try to open my OLDEST unread email first (usually 5 or 6 down on the list), then when I delete it, it takes me to the next email down the list- one that I have already read. I want to see my next UNREAD email after deleting.
Sorry, I am terrible at explaining these things.
"Remember kids, there are no stupid questions. Only stupid people."