I found this in a few different places around the 'net - hopefully it's helpful:
How to Customize ClearType
You can adjust the contrast setting for ClearType for your personal preference. Although there are no tools or settings in Windows XP for doing this, the following Microsoft Web site includes tools to turn ClearType on or off, and to adjust the contrast:
http://www.microsoft.com/typography/cleartype/cleartypeactivate.htm
Display Appears BlurryClearType is designed to enhance LCD displays. ClearType may appear slightly blurry on standard desktop monitors and on some LCD displays. You may be able to improve this by customizing ClearType as described in the "How to Customize ClearType" section of this article.
In rare cases, perceived blurriness is caused by a manufacturing anomaly on LCD displays in which the normal striping of red-green-blue is reversed with blue-green-red. Currently, there is no support in Windows XP ClearType to compensate for this anomaly. This could be the problem in cases in which none of the ClearType contrast settings look good on a particular LCD display. In those cases, it may be best to turn off ClearType.
Color Setting Must Support ClearTypeTo use ClearType, you must have a video adapter and monitor that support a color setting of at least 256 colors. Best results are achieved with High color (24-bit) or Highest color (32-bit) support.
To change the color quality:
- Click Start > Control Panel > Appearance and Themes > Display.
- On the Settings tab, in the Color quality list, click a different color setting.