Press the Esc button on the remote control to cancel the E-Zoom function.
Make sure your computer’s resolution setting is correct. Ideally, it should be 1024 × 768 to match the projector’s native resolution. If this option isn’t available, select one of the other compatible video formats.
Windows: Right-click the desktop, select Properties, click the Settings tab, and select a different resolution.
Mac OS X: Open System Preferences, click Displays, and select a different resolution.
You also may need to modify existing presentation files if you created them for a different resolution. See your software documentation for specific information.