OK, I hope this is the right place to post this. I'm trying to connect my laptop to my TV so that I use the TV's 32" screen to watch web video. My laptop is a Toshiba Satellite L-305, so it's both low-end and a couple years old. It uses Mobile Intel® Graphics Media Accelerator 4500MHD. It does have a 15-pin connector and I bought a 15-pin to RCA (female) composite connector which allows me to connect to the Sony Bravia's 'Video 2' composite connection. On my computer, I select System > Preferences > Monitor Preferences > Detect Monitors, but it will only show me 'Laptop', and doesn't seem to connect. On the TV, when I press the 'Input' key, the 'Video 2' option is in color indicating, I believe, that the TV recognizes that there's something there, but on-screen it says 'No signal'.
What am I doing wrong? (Yes, I had a video playing on my laptop when I had it connected to the TV)