I honestly have no idea what the problem might be, but can you think of any hardware or software changes you made to your computer around the time that the sound quit playing? If there were any, it's a good bet that the change had something to do with it.
Not much help, but the best I can offer
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Courage doesn't always roar. Sometimes courage is that little voice at the end of the day that says "I'll try again tomorrow".
Maturity is knowing you were an idiot in the past. Wisdom is knowing that you'll be an idiot in the future.
Download the
Nosral Confederacy (a shipset based upon the Phong) and the
Tyrellian Imperium, an organic looking shipset I created! (The Nosral are the better of the two [img]/threads/images/Graemlins/Grin.gif[/img] )