Ubuntu 12.04.2 kernel 3.5.0-23?

view story

http://askubuntu.com – I just installed Ubuntu 12.04.2 for my Desktop and i see the Kernel in System Monitor is 3.5.0-23 but Ubuntu 12.04.2 in my Laptop the Kernel is 3.2.0-38. How can i upgrade Kernel for my Laptop? Thanks Ps: I already run the command "sudo apt-get upgrade && sudo apt-get dist-upgrade" for my Laptop but nothing happened (HowTos)