I was using the Hands-Free headset with my Treo and one day it stopped working. I thought it was the jack that was bad but the funny thing is whenever I turned on/off the phone, I could hear sound coming through the headset.

I have not tried other application yet, but has anyone heard about the phone application that would not recognize the hands-free headet? I am ordering the Jabra 250 and I am worried that it would have the same problem. Since I live in one of these states that requires a headset to talk in the car, it is necessary for me.

If you have experienced it and managed a fix, can you let me know how I can fix the problem?