After 6 months of pure frustration, I've been loving the most recent firmware on my V972 -- but now I have a new problem.  All of a sudden, I no longer get any sound from the speaker.  I can get sound through the headphone jack, so I'm suspecting that this is a hardware failure.  I'm not exactly an ace repairman, but I'm not interested in shipping this thing back to China. 

I'm hoping that someone might be able to walk me through how I might fix this, before I open up the case.  Thanks!