sound on speaker and microphone don't work on Ubuntu 10.10

Kernel release: 2.6.35-28-generic-pae
Operating System: GNU/Linux
Architecture: i686
Processor: unknown
SMP Enabled: Yes

!!ALSA Version
!!------------

Driver version: 1.0.23
Library version: 1.0.24.1
Utilities version: 1.0.24.2

This is the output about my alsa. It is written in the Ununtu guide, that the driver, library and utilities versions have to be the same and if not that that it might be that the problem is an old kernel, but mine is 2.6.35.28 which is more than enough for Ububtu 10.10
I really don't know what to do more... Thank you in advance for helping.