I notice that the forum has reverted my account to listing posts in reverse order – i.e. most recent post at the top.
If this has happened to you, click on "User CP" in the black menu bar.
Then click on "Profile" in the lower back menu bar.
Then click on "Options" in the left column.
Confirm your log-in password if requested.
Scroll down and you’ll find the checkbox labelled "Do you want to reverse the displayed order of posts in the topic?"
Un-check it then scroll down and click "Save Changes".
Yeah, easy when you know how! ::)