I would like to use my MB to watch internet TV shows on my HDTV. When I hook MB to TV using VGA-HDMI cable, all I get is a picture of the default MB screensaver on the TV screen rather than the the actual image of the desktop . Seems like the fix should be intuitive but I can't figure it out. Can anyone tell me how to get the actual desktop image to show on the TV screen? I have tried connecting to the AUX input on my receiver as well as directly to TV HDMI input.