Note: Xbox Live recently (some time around August 2012) changed their ad server from rad.msn.com torpt.rad.msn.com. You will need to update your filtering options in order to continue blocking ads. Also note that the domain serving dashboard content, epix.xbox.com, may also be the source of some picture ads - blocking it will give you an error message every time you sign in, but none of the extra superfluous dashboard content will be present. you will have to go into your routers login page and after you have logged in block rpt.rad.msn.com you can also block rad.msn.com just to be safe