>
> I'm guessing that you have an older version of X4 and the Xft library.  It
> may sound like passing the buck, but 99% of all anti-aliasing problems "in
> KDE" are actually problems with libXft.  Ensuring that you have the latest
> version eradicates most problems for most people.
>
> Can you try the following?  Start up KDE like normal and then start a small
> KDE program from an xterm's command line... but start it like this:
>
> % QT_XFT=yes kdcop
>
> This should enable anti-aliasing for just that one program.  Let me know
> what happens.  Also, what version of X4 and libXft are you using?

 Assuming I opened the program correctly "kvirc % QT_XFT=yes kdcop" it worked.
I cannot find any reference to libXft. I am running X 4.0.3.