Solve : No sound from my hdmi output?

1.	Solve : No sound from my hdmi output?
Answer» I am trying to connect my pc to my lcd tv. I have an Acer aspire desktop computer running windows vista home premium which has an ati RADEON hd2400 pro graphics card installed with a dedicated hdmi output. I have installed a 15mtr hdmi cable from my pc to my phillips 37" lcd tv and added a hdmi extender which gives me a perfect picture but no sound. I really need HELP with this as i cannot FIGURE out why there is no sound as from my understanding hdmi should CARRY both picture and sound through one cable.

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