is some information about recompiling a kernel.
i tried "vim /usr/src/linux" wich opened the editor, but as soon as i try to do something, it tells me : modifiable is off.
A couple of notes about editing configuration files. Only root can do that.
If you are using an editor in a terminal window, type the "su" command, then the root password. You will then be logged into that terminal window as the root user.
If you prefer a simple GUI text editor, type (in a terminal window) "kdesu kedit". Enter the root password. Kedit will then start with root permission.