Why am I not getting any sound through my TV from computer?

Can i display my PC output on to my LCD TV and still retain 5.1 surround sound?

• OK, I'm basically thinking about getting a 40-42inch LCD tv which I will be using for the Xbox360 (HDMI elite version) I buy, and watching movies. I have a decent computer with an 8800gt 256mb connected to my AOC 2216Vw. Can I use my PC kinda like a reciever/decoder (it will be less than a metre away from the new TV) and watch the Divx movies i stream on the TV by connecting the two, and still retaining the 1080p capability of my TV and using the 5.1 logitech speakers as my source of sound (that I'm buying and will connect to the PC). And can i somehow change the options on the PC so that it knows it will be regularly displaying on 2 'monitors' (im XP) and if possible power the TV and my AOC monitor at the same time, so i can watch a movie on the TV but still browse the internet on my monitor (like flick the mouse between the TV and monitor). I'm thinking about one of these 2 models, either a cheap Konka KL42CS62Q (http://www.konka.co.nz/productdetail.php?id=54) or a Sony V4500 (or 5500 or W4500 or W5500, all fairly similar though) depending on my budget. Is this viable?

• Answer:

  If your PC has two VGA cable connections then yes. ALMOST any new LCD or Plasma has a monitor connection (VGA input) and will be able to act as a monitor. If you only have one VGA out, if you have any other video out on your PC, then chances are it'll be a connection that you have on your new LCD. XP does let you do two monitors. You right click, go into Properties, click Settings, and it'll designate Multiple Monitors. At this point, you can position the second monitor wherever you want in that window. If your TV is to your right, position the second monitor on the right of the first so that you can just swing your mouse to the right and get on the second monitor. What you'll do is open up Divx and drag it to the second monitor and click full screen. Then you have your desktop free to browse and you've got the movie playing on your second monitor. Audio wise, unless you specifically send an audio cable from your computer to your TV, it'll be running audio through your computer speakers and not the TV speakers since you only have a video cable connected. That should solve your problem.