WD TV LIVE popping noise HELP!

Sorry for my bad English 

Newbie to WD TV live . I connected my wd TV live via hdmi and set audio option to digital out  no audio ,again set audio option to stereo it work but popping noise in interval.(using quality HDMI cable no problem with ps3 )IM on latest firmware.

Problem with WD TV live unit or firmware bug?

Does WD TV live support AAC via hdmi (not stereo/ digital audio out) otherwise I need a AV receiver which support AAC

any solution to fix

help !

http://wdc.custhelp.com/app/answers/detail/a_id/5800/

u want me downgrade ?

its firmware issue ?

I have no idea.   You asked if downgrading was possible, I pointed you to the link that has the answer to that question.  ;)