The monitor may turn on unexpectedly when an unattended task occurs on a Windows Vista-based computer

On a Windows Vista-based computer, certain unattended tasks may cause the monitor to turn on unexpectedly. On a Microsoft Windows XP-based computer, these same unattended tasks do not cause the monitor to turn on. For example, the monitor may turn on when a Windows Vista-based computer receives a fax. However, the monitor does not turn on when a Windows XP-based computer receives a fax.

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.