Does "Mark All Forums Read" work

Hey there.

First post. I'm trying to figure out how the forum works.

I clicked on "Mark All Forums Read" and yet all the threads appear in the forum.

Also, when I scroll down the page, I can see "New or updated since your last visit.
Click to view first unread post." Yet nothing happens if I click on it.

Is that normal at all?

Thanks,

Goldorak

 

I figured it out.
The icon on the left of the thread means there are new post in that threads.
The arrow on the right of the thread means "go to last post"

This is actually described at the bottom of the forum page. I didn't realise this was the legend.