I use iStat menus to show my network upload and download speeds. I got my new 27" iMac yesterday and installed iStat Menus and for some reason the Up/Down speeds from the Airport do not register at all. I have iStat set to the Airport as the only option and is the priority. I've uninstalled and reinstalled iStat Menus and still no luck getting anything to work. I tested ethernet and it worked fine. Any suggestions?