I am using Google Chrome and when I open the CakePHP documentation, this is how it shows on the Google Chrome :

and when I open the same page with Firefox, it shows better, at least more readable as shown below:

The page I am vising is: http://book.cakephp.org/view/898/A-Typical-CakePHP-Request
I think my font settings on Google Chrome messed up somehow and by the way I am using Windows 7 Ultimate.
EDIT:
What I've figured out is it uses HelveticaNeue-Light, HelveticaNeue fonts and I need to remove it I believe.