I want to use a second monitor as a cheap digital signage solution, but do not want that second monitor to go into screensaver or hibernation as long as the PC is on. Is there a way to do that?
Yep. As far as I am aware there is no built in way to do this in XP. There may be a 3rd party app out there to do that but it's easier to just turn off the monitor when not needed.