I would like to buy a laptop, and its inconceivble that a portable PC could not connect-up to a projector (isn't it?). However, does anyone know what I need to look for on a potential laptop? An 'expert' told me that I had to look for a TV-out socket, but then I found that a Sony I had my eye on didn't have one! Can anybody advise me? RGB? S-Video? What?