Issue
In Microsoft PowerPoint, by default, when an external monitor is plugged into a video output jack on a laptop, the display settings change to extend the primary monitor instead of mirroring the primary monitor. The behavior is more of a feature than a bug, although it might seem like a bug if you're not used to it.
Resolution
- Click on the SLIDE SHOW tab along the top of the window:
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- Select the drop down menu next to Monitor and select Primary Monitor from the list of options, and then uncheck the checkbox to the left of Use Presenter View:

- When you are done, the settings should look like this:
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- Begin or resume your presentation. You should be all set.
If you have any further trouble, please contact us at ITS@manhattan.edu or (718) 862-7973.