ClearTweak allows you to change the contrast setting of the ClearType setting for Windows XP.

ClearType is designed to enhance LCD displays. It may appear slightly blurry on standard desktop monitors. It does not hurt to try ClearTweak™ on a CRT monitor. Even though ClearType™ is designed for LCD's, some people see an improvement on CRT's.

APP

http://www.microsoft.com/typography/cleartype/tuner/1.htm does the same thing. Good find though