Distorted sound? No vocals heard, only some ba

Hi! I've been having problems on my Zen Micro Photo I got 2 years ago.
For the past few weeks, the sound coming from it has been weird. The vocals are gone, and only some parts of bass and other background are heard.
I thought this was temporary first, since at first, moving the headphones would fix it, but now it isn't. It's not the headphones, since I've tried it with 3 different types...
I've tried the steps to fix "Distorted Sound on Audio Books" at the knowledge base, but there hasn't been any changes.
I've looked at the threads for problems with the headphone jacks, but I can hear the bass and background in both ears...
Thanks for reading, and I hope someone can help my problem!

You could always delete the com.apple.finder.plist file and then restart. Your finder preference file might be hosed.
Another suggestion would be to try it under a different user. Could be a corrupt user preference.
Another idea....if you have a back up drive with OS X you could start up using that system and see if the problem persists.

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****Please mark Accept As Solution if it solves your problem****
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Hi there,
As per boosting your bass try this method listed here:
http://forum.notebookreview.com/5668647-post3614.html
Its for a different HP model but its practically the same..
Also in addition to above try going into IDT Audio Control Panel and making sure all the volume sliders including for headphones are on max
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I was able to change the volume limit, that WAS set at half. I adjusted it to max volume, set a lock passcode, and away I drove.
Then, upon hitting "play", I began to get a little ticked off. I realized after a few minutes, I couldn't hear anything playing.
It was so quiet- and I-95 is noisy, with me regretting buying another Apple product, after is wrote not to.
So- after reading through a couple of these threads, I just adjusted the volume limit, and VOILA!
It reverted to 50%.
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Distorted sound? No vocals heard, only some ba

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