Hi - I could use some troubleshooting help on this. I used a HDMI-DVI cable and Mini-DVI to DVI adapter to connect my mac book to my HDTV TV, a Vizio. I tried it using each of the HDMI inputs. Each time what came up on the TV screen was an image of the laptop screen background, but no icons. And when I tried to run a DVD, nothing happened. Any ideas? If this topic has been covered in another post, please feel free to direct me. Thanks!