Ok, I bought my Macbook pro 13" a year and a half ago. I've decided to hook it up to my TV. I have a Samsung 42' HD tv. Anyways, I bought the connector and an HDMI cable and plugged it into my tv. When I go to the HDMI seeting on my TV, all that shows up is a secondary wallpaper (it's the pink and purple space looking one). The only way to get anything from my computer to my TV is if I switch to mirroring but no sound is there and the picture quality is crappy. What do I do to fix it or is the only solution is to buy audio cables and just turn on mirroring?