To change your resolution on a Mac:

1. From the Apple menu, select Control Panels. You will either have the option Monitors & Sound or Monitors.

2.If the option is Monitors & Sound:
a. Open the Monitor icon.
b. From the list of available resolutions, select the resolution you wish to use. Your screen resolution will change instantly.
c. Close the Monitors and Sound window.

3.If the option is Monitors:
a. Ensure that the Show pull-down menu option is set to Recommended.
b. From the list of available resolutions, select the resolution you wish to use. Your screen resolution will change instantly.
c. Close the Monitors window.

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