I ain't no expert, but I hear tell that if you leave windows in that kinda state, things can get hosed. Windows apparently does not handle power management matters as well as they'd like you to believe. Of course to inject my two cents worth, why would you want to put the machine in this state. Maybe a laptop, but a desktop box suffers no ill affects from being left on 24 hours a day, but for fans having a little shorter life. I think for all this just turn the machine off all together. Scott