Extended Desktop without sound

[e j]

Hey guys.

Appreciate any help you can give.

I have my laptop hooked to a TV and can-t get the sound to work when the desktop is extended.

When it is duplicated it works perfect the sound comes out of the tv. but when extended it just ceases to work.

I verify that in control panel sounds the TV is selected for playback but still no sound. Any ideas?

thanks in advance

 

[D3LL]

Are you using a HDMI cable for this?