Partial, scrolling or incorrectlydisplayed image
NN O T E S
lThefollowing procedureapplies to Windows XP operatingsys tems on desktop computers
only.
lThisproceduremay vary dependingon yourversion of Windows operatingsystem andyour
system preferences.
gTo resolvea partial, scrolling or incorrectly displayedi mage
1. SelectStart > Control Panel.
2. Double-clickDisplay.
TheDisplay Properties window appears.
3. Click the Settingstab.
4. Verifythat y ourdisplay resolution setting is WXGA (1280 × 800).
5. Click Advanced,and then click the Monitor tab.
6. Verifythat t hes creenrefresh rate is 60 Hz.
Unstableor flickering image
If the projector’simage is unstable or flickering, you could havedifferent frequency ort racking
settingson your input source thanon your projector.
II M P OR T A N T
Writedown your setting values beforeadjusting any of the settings in the following procedure.
gTo resolveyour unstable or flickering image
1. Adjustthe Frequency,Tracking,H-positionandV-position settings in the on-screenmenu.
SeeAdjusting projectors ettings on page14.
2. Checkt hedisplay mode of your computer’s graphicscard. Make sure it matches one of the
projector’scompatibles ignalformats (see Video format compatibility on page29). Refer to
yourcomputer’s manualfor more information.
3. Configurethe display modeof y ourcomputer’s graphics cardto make it compatiblewith t he
projector.Refer to your computer’smanual for moreinformation.
CH A P T E R 6
Troubleshootingyour interactive whiteboard system
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