When turning off my PC i use to have 3 options: Standby, turn off, restart. I recently reformatted my hard drive with the recovery disk that came with my machine...BUT now standby no longer works.Is this a power management issue or device driver issue or ? Ive noticed under device management i have 2 yellow question marks: Video controller(vga compatible) and smbus controller have no drivers. Using the Install update driver Wizard doesnt work .The manufacturer of my machine doesnt support these drivers(guess thats what happens when you have an older machine). Actually dont know why im worrying about these yellow question marks as my machine works quite well right now..BUT....i have lost my standby button. Any suggestions how to solve my loss of standby.....