The DPI setting for fonts is set too high or there is a conflict with Aero being enabled on your Microsoft® Windows® 7/Vista system.
A larger DPI is often used to help make the text on the screen easier to read. Yet altering this setting beyond the defaults can cause issues with program functionality.
Aero is a new hardware-based graphical user interface in Windows 7/Vista. It is intended to offer more advanced features than are available in the standard interface, including new transparencies and animations.