Rambling Red, of unhappy memory!If logged in, the New icon will appear. This has the same functionality as the old site with which you are completely familiar, @Lawrence of Suburbia.
What seems to be different is that there is a Filters drop-down. Hit that and you will see options as to what is displayed. Untick the default Unread discussions and you will see those you have read (like the old site) including that which you have just posted.
Now, which Pantone colour is that? 😉