My daughters laptop Advent laptop running Vista is playing up. This morning she downloaded an update on MSN. She left it downloading and carried on with a few jobs in the house. When she came back to the laptop it had switched itself off. Now all its doing when you switch it on is the fan is whirring but nothing else. The DVD drive opens and the laptop is powering up but nothing else. Screen is completely blank. At the monent she cant find any of her discs so can anyone suggest any button pressing I can do that might help. I've tried CTRL ALT DEL but no joy. Any suggestions?