Assumming you have a TFT monitor and not a CRT monitor you could download and try Cleartype from Microsoft.
It depends what you mean by faint really. Many things can also affect the way text appears such as having the monitor set to the wrong resolution and it could also be a problem with the monitor. Its differcult to say what the problem is without seeing it. You could try the monitor on another PC and if its fine on another PC then you know the monitor is OK and its just some of the settings you need to alter.
Cleartype click here