Help HTC Touch Pro question?

[Ruhana]

I got a headphone jack adapter, and when I plug it into my Touch Pro, it doesn't find it. I know I plugged it in correctly, but the sound keeps coming from the speaker instead of my earbuds. I'm wondering if there's a setting I need to change? Or if it's just not working.

Thanks~

 

[KenLee]

maybe you can try to setting in the start program