speakers/headphones

For some reason, when I plug in my headphones on my laptop (Thinkpad R61 
series) the speakers continue working. So the sound is coming through 
the headphones and the speakers.

This only started happenning after I trued using a USB headset. Before I 
ever plugged that in, I didn't have this issue. When i had headphones 
plugged in, the external speakers were mute.

Any ideas?

Thanks
  Tom

--

-- 
TARogue (Linux user number 234357)
 Giving money and power to government is like giving whiskey and car keys
 to teenage boys. --P.J. O'Rourke