Just been looking at friends laptop and its really odd she has to press the computer on and then hold down button and turn it off then turn it on again. EVERY time she wants to turn on the computer. Even if you take out battery and put it back in you have to do the same thing.

For desktops running XP you have to hold down the main power button to over ride the OS's shut down routine. Best guess is a similar sit. in reverse. Insufficient data for anything further?