I have a mid 2009 macbook pro and currently purchased a mini displayport to hdmi. I wanted to watch movies on my hdtv and unfortunately I do not get any audio output from the tv. I tried using my brother's new macbook pro and his works fine with the displayport if i change the settings by going to System pref>sound>output> and selecting the hdmi audio that is shown on the list. How come my 2009 macbook doesn't have the option to select hdmi audio ? What is the best alternative to get output through the tv using the mini display port so that I can watch movies through my laptop to the tv? Does anyone have a Cheap easy solution instead of having to purchase a Mini DisplayPort to HDMI with 5.1 Channel Digital Audio? Thanks for your help