Confused with AdBrite auto approve network ads

I was getting some really bad and annoying ads on videogame-news.com so I decided to turn off auto approve and then I could choose what ads I want. I’ve picked nice ads that are related to my content now and it gives a much better impression than flashing broadband ads …
Anyway, I’ve turned off auto approve for one of my other ad zones as well now but it’s only allowing me to approve/reject for the first ad zone …

Why is this?

Original post by Chris369