i have older laptop that i have connected to my lcd through vga cable and 3.5 mm stereo cable. i want to use it for games and dvd playback. i am not sure how to handle sound. does 3.5mm stereo cable transfer 5.1 sound? i am setting up my first ht. i will have receiver connected to tv using optical out on tv and in on receiver. does it mean that sound will go from laptop through tv to receiver and there will be played to ht speakers? or do i need to connect directly from laptop to receiver? 3.5mm on laptop side, black and white cinch on receiver side. or is there other way? again laptop doesnt have hdmi or optical out.