ACT! is programmatically designed to display and scale based on 96 DPI (dots per inch) display settings.
If DPI settings are set to Large size (120 DPI) or a custom DPI settings above 96 DPI, ACT! has been reported to have issues rendering certain areas of the application properly. General issues that can occur when DPI settings are larger than a application was designed and based for are:

• Disppllay incorrect font size
• Pixilated text
• Clipped UI elements or text
• Misalignment of application space or rendering affecting layout

For instructions on how to reduce your default Windows® font size DPI setting, please follow the steps for your Operating System.