cannot kill a process

[Luca Ferrari]

On Friday 11 January 2008 Glenn S's cat, walking on the keyboard, wrote:
> Hello Luca,
>
> How are you finding the process ID and killing it?
> normally you would use a ps -ef and get the process Id and then use sudo
> kill 145 for eg.

Yeah, that's what I'm doing: getting the pid with ps and then kill the 
process, either with SIGQUIT and SIGKILL, but nothing changes.

Luca