Read Replies Problem

[Ultraluigi]

I marked all replies as read, but I can't find a way to change it back. Could somebody please help me?
EDIT: I fixed it.

 

[Yoshiwaker]

Lock?

 

[Lily x]

Sorry for bump but I just had this problem...

 

[ralphfan]

Sometimes you just have to mark them read a second time. I'm not entirely sure why.

 

[Lily x]

Okay.

 

[Dr. Javelin]

Is it possible to mark them all as unread?

I mean, you can do it manually to some threads...