About fonts > ClearType information
Step 1: Turn on Windows XP ClearType
With Windows XP, ClearType delivers improved font display quality over
traditional forms of font smoothing or anti-aliasing. ClearType improves readability on color LCD displays with a digital interface, such as those in laptops and high-quality flat panel displays. Readability on CRT screens can also be somewhat improved.
Use this online tuner to turn on and tune your Windows XP ClearType settings. If you experience problems download the Windows XP PowerToy version of the tuner. Please note that the online tuner does not currently work with Windows Vista.