Optoma EP721 User's Manual - Page 42

Appendices English 42 6. Select the "Change" button under the "Monitor" tab. 7. Click on "Show all devices". Next, select "Standard monitor types" under the SP box; choose the resolution mode you need under the "Models" box. 8. Verify that the resolution setting of the monitor display is lower than or equal to UXGA (1600 x 1200).  If you are using a Notebook: 1. First, follow the steps above to adjust resolution of the computer. 2. Press the toggle output settings. Example: [Fn]+[F4] Compaq  [Fn]+[F4] Dell  [Fn]+[F8] Gateway  [Fn]+[F4] IBM  [Fn]+[F7] Hewlett Packard  NEC  Toshiba  [Fn]+[F4] [Fn]+[F3] [Fn]+[F5] Mac Apple: System Preference  Display  Arrangement  Mirror display  If you experience difficulty changing resolutions or your monitor freezes, restart all equipment including the projector. The screen of the Notebook or PowerBook computer is not displaying your presentation  If you are using a Notebook PC Some Notebook PCs may deactivate their own screens when a second display device is in use. Each has a different way to be reactivated. Refer to your computer's manual for detailed information. Image is unstable or flickering  Use "Phase" to correct it. See page 36 for more information.  Change the monitor color setting on your computer. Image has vertical flickering bar  Use "Frequency" to make an adjustment. See page 36 for more information.  Check and reconfigure the display mode of your graphic card to make it compatible with the projector.