Ah, that is a problem. I'd suggest taking the battery out to power it down, but I believe that Apple have a policy of making the batteries non-removable. Have a look at this thread
and see if it helps at all.
hey thanks for the help, I let it completely discharge and then reconnected it and it worked, thanks a lot for your help!
I did not think i would be able to solve the problem like that!
Keep up the good help!