A Windows 7 user states that a laptop does not display a picture when connected to a projector, but has a picture on the laptop's screen. Which of the following could be the cause?

A. The laptop external display setting has been turned off.
B. Windows 7 does not support multiple displays on laptops.
C. The Windows APM is not set to Presentation Mode.
D. A Windows 7 video driver is missing.


Answer: A. The laptop external display setting has been turned off.

Computer Science & Information Technology

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