Computer restarts on shutdown
I have a problem with my computer occasionally restarting on shutdown.
Sometimes when i shutdown it reboots. At the login screen, i can shutdown and it seems to always shut down properly from there.
I have read elsewhere that this might be a power setting in the BIOS, but i think not as i) it doesn't happen in windows (which i dual boot) and ii) it only happens some of the time and never if i shutdown straight from the login screen.
Its not a world-ending problem, but its a bit of a hassle if i am in a rush to go somewhere and want to shut my machine down and it decides to restart.
This is all trying with shutdown from the cog in the top right of the panel.
I am running 12.04 (64bit) on a thinkpad x131e.
Any help would be appreciated.
Thinkpad x131e (Ubuntu 12.10) & Asus A6Rp (Lubuntu 12.10)