Maybe have the page notify you that new notifications are available and allow a refresh to see them.
With some redesign, the site now will pop up a notification at the top right of the page to show that you have something new. For now, you will need to click on the drop down menu to see them. I can understand the benefit of the notification page having a live update type feed similar to Twitter; however, this would be a large amount of development without being very useful for users. For now, we aren't going to plan on this, but we could take another look in the future.
Customer support service by UserEcho