1.
If you are seeing this occuring in Outlook application  (may help with other office applications also, but you can only disable in Outlook)

Then try disabling hardware acceleration by performing the followig steps

  1. Open aOutlook application, like Word or Outlook
  2. Click on File
  3. Click on Options
  4. Click on Advanced
  5. Scroll down until you see the Display Area
  6. Normally the Check box is unchecked, click on it to enable it
  7. Close Outlook
  8. To ensure, reboot the PC
  9. Go back into Outlook and check that it is ticked.