Click "Profile" in the menu along the top.
Click "Look and Layout" in the Modify Profile menu
Uncheck the setting "Show most recent posts at the top."
Click the "Change Profile" button.
Without wanting to get into an argument, what are the very good reasons @Condate ?
Thanks. However I don't seem to have a Look and Layout section. Under Profile, I have "Summary", "Account Settings" and "Forum Profile". None of those sections has "look and layout".
I suppose the order is a matter of preference. For the other forums I visit, people read the threads like a paper document from top to bottom. There is generally an option to open the thread at the last item, or go to the last unread post. On some, the posts are displayed in such as way as to group replies under the original post. When opening a previously unread thread, it seems odd to have to go to the end to find out how it started.
As long as there is an option to choose which way to view it, I don't suppose it really matters what the default is and no doubt there are plenty of people who prefer the new way.