Comment 1 for bug 23270

Thanks for your bugreport.

Can you please send me your ~/.xsession file please.

And the output of: "ls -alR /var/lib/update-notifier/user.d"

And your ~/.update-notifier/hooks_seen file as well.

Do you use anything "unusual" on your system? E.g. a uncommon filesystem?
Problems with the clock maybe?

Could you please please check the updated version in
http://people.ubuntu.com/~mvo/update-notifier/?