We have an issue with a projector where it can only display up to 720p input. It is a 1080p projector and was working before, but the wires may have been run too long in order to conceal them.
The workaround for now is to use the iMac and projector at 720p when display mirroring is enabled, instead of their native 1080p. The problem with this is that PowerPoint turns off display mirroring in Presenter View and everything defaults back to 1080p. So no one is able to give a presentation in Presenter View.
How can I force PowerPoint to present in 720p or stop the resolution from changing?
The setup is OS X 10.8 with PowerPoint 2011.