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Acer ePresentation Management
Acer ePresentation Management lets you project your computer's display to an external device or projector using the hot key: Fn + F5. If
Empowering Technology
If the restored resolution is not correct after disconnecting a projector, or you need to use an external resolution that is not supported by Acer ePresentation Management, adjust your display settings using Display Properties or the utility provided by the graphics vendor.