Ok, I am trying to figure this out. I have added some banners in, one is a rotation advertising one and another is an AdSense one. The problem is NONE of them when clicked are opening in a new window, they all open in the current tab. I am testing this with Chrome and IE9. I go to Tools - Banner Manager and all of them are set for new window, so I don't know what I am missing. These are all html text banners if that plays into it.