I got my new 9100 a couple of days ago, and generally speaking it is
great, and I really pleased with it. It is very fast and very quiet.

This system has the Intel integrated audio, and uses the SigmaTel High
Def audio codec. Playback of sound through the speakers is fine, but
the mic/recording function is not working properly. It is possible to
capture speech (using a mic that works perfectly on a Dell 4100 with a
Soundblaster sound card), but the recording level is way too low. I
want to use this system with Skype, and it is barely usable at the
moment because of this problem.

I have installed the updated drivers recommended by Tom Scales in an
earlier post, and this seemed to help a bit, but didn't really cure
the problem.

I can't see any way to increase the mic gain (other than setting Voice
recording volume to the maximum, which I have done). Any suggestions
would be welcome.