Can't shutdown or logout

[user1]

On Thu, 24 Jun 2010 17:37:16 +0100, Liam Proven wrote:

> Anyone met this one?
> 
> My laptop is functioning perfectly, with a desktop spread across its
> internal & an external monitor. (Mint 9, which is to say, Ubuntu 10.04.
> Suspend or hibernate and resume doesn't work but I can live with that.)
> 
> The only snag is, it completely ignores me when I try to log out or shut
> down. Nothing happens, no error, zero.
> 
> Any pointers at where to look for more info? Does the GNOME shell log
> stuff like this anywhere I can look at?

sudo shutdown -h now