C440 Problems with HDMI

I am connecting my C440 All in One running Windows 8.1to the TV. From the Devices charm I chose Project and then Duplicate.
Everytime the PC screen blanks out. Doesn't matter if I chose to select just for the PC as soon as i connect he HDMI cable the PC screen goes completely blank.
What am i doing wrong
Moderator Note; subject edited

I have a C440 All in One Touch which i want to connect to the TV using HDMI cable. The TV is quite a distance away so i want to set it up with Dual display, Desktop and TV. I have used the Devices charm on windows 8.1 "Project" to try to do it but everytime I connect - doesn't matter what the charm setting is - I lose the display on my Desktop.
What do I need to do to get this most basic of things to work
Moderator Note; subject edited; post merged in

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Last edited by Vaski (2010-08-21 01:08:42)

cleanrock wrote:I noticed i got no audio over hdmi on some video file which had a low audio bitrate, i solved it by resampling the sound to 48000 in ~/.mplayer/config :
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C440 Problems with HDMI

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