My PC has been having problems shutting down. I've make sure there are no unessesary things running at startup, I've run my norton antivirus and spybot. My PC is four years old so mabye it's just getting old? The strange thing is it must get far enough in the shut down process to be almost shut down because even if I hold the button to shut it down at that point it does not say it was shut down incorectly. Sometimes when It does not shut down on its own a sreen comes up with orange and black bars down the screen not sure what's up with this.