pls help me

Hi all.

I have to use in my system operating system as windows XP, in this the font colour is grey, however i change that font colour that the colour is not changed. then i have to reinstall my pc with the same windows XP that time also the same problem occurs, there is no changes will happen. i have do any changes in my pc, that font colour is not come to black its always in grey colour, pls help me how to solve that problem.

kind regards

RoR