Right now i'm trying to connect my dad's pc to his hdtv (wired), so he can put vids from his pc on the big screen. The pc has windows vista. The pc has a hdmi slot as well as the tv(has 4)(just bought a new hdmi cord today). I've followed all sorts of directions, but they have all lead me to the last step, in which i cannot complete. One of the options tells me to go to graphics properties, then to display devices, then to change operating mode from single to multiple. The problem is for all my steps so far is either that the option is not there in the drop box or there is a box i need to check, but it won't let me. Any help would be appreciated.