[X4U] Fwd: MacBook Pro Audio Crisis - please help!

[Ronald Steinke]

On 11 Apr, 2007, at 2:21 PM, Steve Talkowski wrote:

>>
>> However, I just noticed something that maybe moots this whole  
>> thing.  When I plug in my headphones, the volume buttons do work!   
>> And therefore I assume that if I plugged in speakers, they would  
>> work, too.  So maybe there's something wrong with my built-in  
>> speaker (for example, I can't hear anything when I play a song in  
>> iTunes--unless I plug in the headphones), and that problem is  
>> somehow being reflected in the computer's response to my pressing  
>> the volume-control keys.

Check the sound out preference settings. It may be set to send the  
signal to the earphone/external speakers instead of the internal  
speakers.