Originally Posted by PenGun
This has been a known bug for at least a year. It is still not fixed.
However, when you do not use the subpixel hinting (or set it to grayscale) it will work much better. This is under fonts -> antialias -> configuration.
So what is that, an AGP thing?
It is in the KDE Control Center under Appearance -> Fonts.
Maybe you have an old KDE version? I use 3.4.2 level b (SuSE 10.0), probably not the newest either.
It has been discussed before and it happens only on certain cards (6600GT is affected) but it seems either nvidia is unable to fix it or it is a low priority to them.