Go to first unread post Missing?

I lost the Link call "Go to first unread post " on some post?

Right now, I can this the link on this thread but unable on this thread

EDIT : Self-Fix with a bit of Brain Processing :)

Probably because the thread is a) over a year old b) closed?

Check this thread start yesterday. Missing "Go to first unread post" also.

http://www.antionline.com/showthread...hreadid=254915

I think I found my problem.. I was doing a search for new post but I had a tech call and I came back 3 hours later where all those new post where probably signed as read. Now, I just did a new search post but all the post with the firstnew.gif have the "Go to first unread post" but the one without firstnew.gif doesn't have "Go to first unread post". So it's probably the fact that I was still looking at a new post search that was 3 hours laters.