Comment 22 for bug 53868

miq@adara:~$ /usr/lib/update-notifier/apt-check
Reading package lists... Done
Building dependency tree
Reading state information... Done
0;0miq@adara:~$

and

miq@adara:~$ ls -l /var/lib/apt/periodic/
insgesamt 0
-rw-r--r-- 1 root root 0 2008-12-05 09:09 update-stamp
-rw-r--r-- 1 root root 0 2009-01-24 11:09 update-success-stamp
miq@adara:~$

Hope this helps...