Well I am using a newer kernel on my Ubuntu 11.10 as the stable 3.0.0-14 version was causing laggy sound on my PC. After upgrading my kernel to the latest version for the 12.04 Alpha (3.2.0-8) the sound issue was solved. I upgraded by temporarily changing my sources to 12.04 ones, upgrading kernel, then switching back. I would like to know how to check which is the latest version of kernel for 12.04 so I can know when I should upgrade.