I have a Inspiron 6400 (Canada) and downloaded and followed the procedure posted by falerus
on page 2. The only difference I see so far is the "Line-In" option in the 'recording' section of volume control. Also, when i go to Sigmatel Audio in control panel, the only thing I see is a checkbox with "Allow reconfiguration Pop-Ups for this Jack." There are no tabs or anything like in the screenshots posted.
What I need most desparately is the ability to record whatever sound is being outputted by the soundcard and record it. Any ideas would be appreciated.
Thanks everyone for all the work you're doing here!