I'm also trying to conncect a 2-4 year old macbook to a hdtv. I have a mini dvi to hdmi adapter, and have that mac plugged into my tv using an hdmi port. for sound, i bought a red/white audio cable and plug that into my mac headphone outlet but do not have sound. could use some help on this. i also have a home theater connected to the tv as well.
Any thoughts/remedies? i'm new to the thread.