Using Chrome there is no scroll bar in the notification box.
@pmilone - Good idea, we can look at adding a scroll bar here. In the meantime the notifications should scroll properly if you just scroll down the page: http://screencast.com/t/3CmTm7cr
@alex- FYI, in order for this to work you have to make sure you click somewhere in the notification box otherwise the scroll function works for the interface page. P.S. love the new interface, Thanks!