Once connected do I need to change any settings on my TV or iMac G5 (Leopard) to make the outcome look the best it can? And how do I do so on my mac?Howard
Don’t use VGA.
Use a miniDVI-to-DVI adapter and a DVI-to-HDMI cable. That is a digital signal, and it works much better than analog VGA or connecting to an HDTV.