The Hauppauge WinTV range is a right pain in the arse to sort out. Even using one on a windows system takes ages to sort out as several different chipsets are used in the same family. My freeview TV USB stick has slightly newer hardware but windows 7 hates it, Windows VISTA tolerates it and WIN XP loves it. Even with updated drivers it moans at you and often needs to be unplugged and put back in to get the thing to register.