[Bug]New posts cannot be viewed

[Fourstyle]

After i open a thread/topic/post,

then i go look for some new post, through the link on the top, below the banner, what i see after is there are no new posts available even after i away for 2 days.

It won't show me any new post.

I'll put this this way, because i don't know how to explain it:
1. Opened my Firefox 3.xx
2. Open a thread (ex: http://www.akiba-online.com/forum/showthread.php?p=128544)
3. Click on "New Posts" link (http://www.akiba-online.com/forum/search.php?do=getnew)
4. No new posts???

But i can view the new posts if i:
1. Open Akiba-Online.com
2. Click on "New Posts" link (http://www.akiba-online.com/forum/search.php?do=getnew)
3. YAY NEW POSTS!

I consider this as a bug... Because if i read a thread before i search for new posts, it won't show me new posts.

But if i go directly search for new posts, it will show me.

This kinda bring me trouble with firefox, as i always save my last tab when i open firefox. So it will automatically open the thread i read before, and discard all of the new posts.

Sorry for the confusion.