Background: This behavior occurs because the Font Smoothing options in the System Preferences are set for the wrong type of monitor. To change monitor settings, follow the steps below.

  1. Go to Apple > System Preferences > Appearance > Font Smoothing and select Standard - best for CRT

  2. Quit and re-launch QuarkXPress

For 10.7.x , 10.8.x , 10.9.x :

  • Go to Apple > System Preferences > General> Use Font Smoothing when available

  • Quit and re-launch QuarkXPress