Need help! HDMI on LCD tv monitor has no sound!

[azodnem_essej]

Guys please help, i recently bought an hdmi cable and hooked it up on my 32" LCD TV for my desktop computer. The picture is fine, but there is no sound! So, i go to audio devices, it says 32LC2R-UJ AMD high definition audio device, as well as speakers. I configured my tv to be the default audio device. And when i try to test it (by right clicking 32LC2R-UJ and choosing test), a notification of "failed to play test tone" always shows up. Please help

My specs:
Gigabyte Ga M68MT-S2
AMD Phenom II X4 965 BE
Sapphire Radeon HD 7950 Boost ed
4gb ram
WD Caviar Black 1 tb
FSP Aurum 700 watts
Windows 7 64 bit Ultimate edition

Driver:
AMD Catalyst 13.10 Beta

 

[azodnem_essej]

Also, i already updated my AMD Catalyst driver (from 13.6 - 13.10) and still has no sound. I also tried to install the Realtek audio driver itself, but still no sound. Please help, anyone