
Troubleshooting Without Diagnostics
Solving Display Problems (Continued)
Problem | Cause  | Solution  | 
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Blurry video or requested  | If the graphics  | Install the video drivers on the  | 
resolution cannot be set.  | controller was  | diskette included in the upgrade kit.  | 
  | upgraded, the correct  | 
  | 
  | graphics drivers may  | 
  | 
  | not be loaded.  | 
  | 
  | 
  | 
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  | Monitor is not capable  | Change requested resolution.  | 
  | of displaying requested  | 
  | 
  | resolution.  | 
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Screen goes blank.  | You may have a screen  | Press any key or type password.  | 
  | blanking utility installed  | 
  | 
  | or energy saver  | 
  | 
  | features are enabled.  | 
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  | 
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The picture is broken up,  | The monitor  | 1. Be sure the monitor cable is  | 
or it rolls, jitters, or flashes.  | connections may be  | securely connected to the  | 
  | incomplete or the  | computer.  | 
  | monitor may be  | 2. In a   | 
  | incorrectly adjusted.  | |
  | another monitor is in close  | |
  | 
  | |
  | 
  | proximity, be sure the monitors  | 
  | 
  | are not interfering with each  | 
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  | other’s electromagnetic field by  | 
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  | moving them apart.  | 
  | 
  | 3. Fluorescent lights or fans may  | 
  | 
  | be too close to the monitor.  | 
  | 
  | 
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Monitor overheats.  | There is not enough  | Leave at least 3 inches (7.6 cm) of  | 
  | ventilation space for  | ventilation space. Be sure there is  | 
  | proper airflow.  | nothing sitting on top of the monitor  | 
  | 
  | obstructing the air flow.  | 
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Troubleshooting Guide  |