My pc has some strange shutdown problems . Some times it shutsdown fine others it will hang on the "saving your settings" . Also occasionaly when i try to disconnect from the internet (BT Broadband) the pc hangs and the only way to close my connection is ctrl+alt+del . then i cannot reconnect without restarting! I have run both spybot and Antivir and found nothing. Im pretty confident im not picking up spyware anyway because i browse with Firefox and rarely download.