You just had to click on a sender's email address in the Inbox and all the emails from that person appeared, and you could go from one to the next by clicking on the up or down arrow. Now I have to search for that person, which brings up the emails from him/her/it, but, to go from one to the next, I have to go back to the search field and search again. Fortunately, the name is still there in the search box, so I only have to click on the magnifying glass again, but it was a lot easier before.
