I've got a macbook and I'm trying to hook it up to the TV but haven't been able to as of yet! I have bought the DVI-HDMI cable but I'm not very familiar with computer systems so haven't been able to understand a lot of what I have read etc. on the problem! My Macbook or tv does not seem to respond when the cables are plugged in. I have tried detecting displays but it doesn't register. Can someone please give me some advice that will be understandable to someone who isn't familiar with computer jargon etc! Thanks