I have a probably easy question but anyways i just installed xp pro on anouther computer recently and left it siting there runing without any programs etc installed on it and was using the default xp pro screensaver it has. Whenever the screen saver comes on hard drive activity seems to be very active and the led is flashing like crasy. I have noticed this on any xp pro system runing the xp screen saver. Does anyone know what its doing in the background while the screen saver is runing?