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g To resolve your unstable or flickering image
1. Adjust the Tracking setting in the on-screen display. See Image Adjustment menu on page 14.
2. Change the tracking settings on your computer. Refer to your computer’s manual for more
information.
3. Optionally, reset the projector as described in Resetting the projector on page 49 to adjust the
tracking to its original value.
I IM POR TA NT
This action resets all values to their defaults.
Your image has a vertical flickering bar
If the projector displays a vertical flickering bar, you could have different frequency settings on your
input source.
I IM POR TA NT
Write down your setting values before adjusting any of the settings in the following procedure.
g To resolve the vertical flickering bar issue
1. Adjust the Frequency setting in the on-screen display. See Image Adjustment menu on page
14.
2. Check the display mode of your computer’s graphics card. Make sure it matches one of the
projector’s compatible signal formats (see Video format compatibility on page 23). Refer to your
computer’s manual for more information.
3. Configure the display mode of your computer’s graphics card to make it compatible with the
projector. Refer to your computer’s manual for more information.
4. Optionally, reset the projector as described in Resetting the projector on page 49 to adjust your
frequency to its original value.
I IM POR TA NT
This action resets all values to their defaults.
C HA PT ER 6
Troubleshootingyour interactivewhiteboard system
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