Hi, This is on an Ubuntu 10.4 system, with an internal sound card I don't use at all, and a USB headset with mic that isn't always plugged in. The goal is, when it's freshly plugged in, to have it work without extra steps. I have that working for the earphones, but not the mic. To get it the USB headset listed as card-0 rather than card-1 I created a file /etc/modutils/sound_cards with the following: alias snd-card-0 snd-usb-audio alias snd-card-1 snd-via82xx-modem That worked, for whatever it's worth. Then in System > Preferences > PulseAudio Preference (which I think came into the system from something extra I installed while mucking with this) I went to Simultaneous Output and enabled that. Then in System > Preferences > Sound > Output I selected "Simultaneous output to ..." which unlike selecting the single output device as the USB headset, persists when the headset is unplugged and so works right away when it's plugged back in. In System > Preference > Hardware I disabled the internal card (for what that's worth). Here's the problem I haven't solved. In System > Preferences > Sound > Input the listing for the USB device comes back soon after it's plugged in again. And it's the only listing there. But the thing's not checked! My .pulse directory has a file, [long-number]-default-source which gains and loses the USB device's name as it's plugged and unplugged, but that file stays the same whether it's checked or not. I can't find where the checked/unchecked status is stored, or how to hard-code it so the microphone always is selected just as soon as the headset is plugged in. This is not good when trying to answer a Skype call. Is there some way to make the microphone default to on? Thanks, Whit