[ubuntu-uk] Updates in 8.10

[Dianne]

I've got daily checks for updates enabled but I noticed today that I
hadn't seen the icon for quite a while. When I did a manual check there
were 28 waiting. I also noticed that the icon didn't display while I was
running those updates.

My settings are:
important security updates (intrepid)
recommended updates
check for updates daily
only notify about updates

Is there somewhere else I could have turned off the update notification
by accident?

TIA
Dianne