I've replied to dozens of messages I'm sure but I wish to reply to a message sent to me by another user, but there are no helpful links marked "reply". So what am I supposed top do?

I am sure there used to be a "Reply" button but no longer?

KASpencer

When reading a discussion there is a panel to the right which is where the reply button. That panel is dynamic, changing with the length of the discussion. When the discussion is short, you may have to scroll the window down in order to see it. When the discussion is long, the Notification level and Related Topics sections become hidden. There is no reply button when you are not logged in.