Hey everyone,
Small bug if you don't know about it. If you have dual monitors on a
laptop, and the primary monitor is the external when going into hibernation,
upon resume from hibernation, the only monitor plugged in is blank. The only
thing I can suggest is that upon resuming hibernation (or sleep mode if it
affects it, I haven't checked) is that Vista would check if the external
display is still plugged in. If it is not, primary monitor would be switched
back to the internal display.
This leaves you sitting there with a blank screen when all you have to do is
type your password in and hit enter.