That option has disappeared from the top left portion of a thread page.
I’m seeing it, right under the “Post Reply” button at the beginning of a thread. Any chance that it’s related to you being a “guest”? Although that seems an odd feature to tie to a user’s member status… Do you have the “thread tools”, “search this thread”, or “Display modes” links on the right-hand side? Maybe that whole toolbar has an option in the back-end configuration associated with membership type.
Yeah, I probably need to re-up, been procrastinating on that…
What actually seems to be happening is when I click on a thread it now automatically resets all posts to unread, which it wasn’t doing before today (and I’ve been lapsed into guest-mode for 2 months now).
Edit: Problem fixed now, odd…