i always use to just shut down my pc. i've tried using sleep now because i've started to use the DVR capabilities of windows media center. when a scheduled recording approaches the computer will automaticlly resume form sleep and record the show then go back to sleep after some inactivity. BUT... when resuming back from sleep my cpu fan will run and continue to run at full speed! no matter what the load is on my cpu it runs at full speed. the shows that im recording are really early in the morning and the pc is in my bed room. the fan is so loud it wakes me up! what gives!