My system:

Intel Pentium Dual Core E2140 @ 3.0GHz
ASUS P5K-Premium WiFi/AP
4x1GB OCZ Platinum Revision 2 PC2-6400
250GB HDD with 80GB for Windows, 25GB for ext3, 2GB swap (lba) and 130GB for data (lba)
GeForce 8600GT 256MB

I can't record sound/use skype/msn messenger's sound conversation.

I tried changing every possible setting in alsamixer and Gnome's sound panel.

Someone... give me a light