Hi Harry, <snip 2. I've got a very strange problem, and that is, when I unplug my head set microphone, I got no audio at all, so, I had to do a hard shut down of my computer. PL] Go to the jaws menu, then to utilities and then to sound cards. Select the specific sound card you want jaws to use. Your headsset probably has a built-in sound card. This sound card gets registered as the default sound device on your computer. When you unplug it, Jaws defaults to something like the microsoft wave mapper which does not give you any speech. The next time you lose speech, hit windows +u to start narrator. That should allow you to operate effectively. In addition, you can use the "computer off" command in dragon to power down your computer. Pranav