I still don't think I'm explaining this properly. Look at this thread,

http://petoftheday.com/talk/showthread.php?t=91158


Below the reply button there is a solid blue line on the left with option
boxes on the right, but there is no view first unread option.

Look at the first post in this thread.

http://petoftheday.com/talk/showthread.php?t=91186

and there is a view first unread option.


in the same place there is
a view first unread option.