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If defective icons vary from a work session to another

or if they return (properly displayed) when you move the mouse cursor over the picture and if these defects are also visible within the documents (especially those with drawings) this may be due to your graphics card. In this case:

  • First, if you are in the Calc module, press the following key combination in your LibreOffice Application:Ctrl+⇧ Shift+R. The screen will refresh and the lightest problems will be solved. In Writer, this keyboard shortcut is associated by default to the rulers display but you can assign a key combination to the Restore view function.
  • If the above step does not work for you, try changing the color options or the graphic resolution.
  • Finally, you can uncheck the option Use OpenGL in the Tools ▸ Options ▸ LibreOffice  ▸ View ▸ Graphics Output ▸ Use OpenGL for all rendering. Graphics cards with known issues: ATI, Matrox, S3 Virge ... Explanation: say you have an image with a standard specter of 150 components. Most cards support the 10 higher. Unfortunately, LibreOffice sometimes requires the support of the 142nd else ...