Macbook pro keeps starting up on shutdown

[equalsabracket]

This problem has just started tonight. I try shutting down my macbook pro either from being logged in or the login window and it shuts down then after a few seconds restarts.

Any ideas why or how to stop this?

 

[DewGuy1999]

Go to System Preferences...
Go to Energy Saver
Go to the Options tab
Is Restart automatically after a power failure checked?
Uncheck it.

 

[equalsabracket]

No, it's not checked.

 

[DewGuy1999]

Hmmm, I've never before heard of this kind of thing happening. You could try one or both of these:

Resetting your Mac's PRAM and NVRAM

Intel-based Macs: Resetting the System Management Controller (SMC)

 

[equalsabracket]

Ok, i booted from disk and went on 'repair disk permissions' in disk utility and that hasn't done any good.

I have noticed a pattern - if it's unplugged, it stays turned off. If it's plugged in whilst shutting down, it reboots.

 

[equalsabracket]

Problem solved. Solution found here:

http://discussions.apple.com/thread.jspa?messageID=10465608&#10465608