Ubuntu 12.10 weird shutdown bug
So i'm haveing a rather weird bug with Ubuntu 12.10 x64. I just installed it on my laptop. When I shut down the computer it will shutdown pause a sec then turn back on again! I know its not a hardware thing because it is a brand new laptop and one of my co-workers has the same issues on his computer(later resolved buy installing Mint) Anyone have any idea what this might be and how I can fix it?
Shuttle AB48PN, WD Caviar Blue 320Gb, Pentium 4 OC to 3GHz, 2Gb corsair DDR333, Sapphire Radeon HD 4650, Acer 23" LCD monitor, Sparkle 400 Watt PSU.