update notification - natty desktop

[compdoc]

>yes, that is good for server. for desktop you want the notification to
>be something like OSD.

Yes, apticron emails notices because it's a server and I'm not logged in all
the time.

However, when logged in either the console or VNC, I have always gotten the
pop-up (OSD) notification from software-center.

Maybe your settings change will correct this...