Version: (using KDE 4.4.2) OS: Linux Installed from: Archlinux Packages As per the attached screenshot. A few fonts (FreeSerif, ) are rendered as highly pixellated and frequently overlapping when used as the default for pages that do not specify a font of their own. This improper rendering is also visible in the font selection combo-box used in Rekonq's configuration dialog. QtWebKit (Arora) does not seem to suffer from this problem.
Created attachment 42669 [details] A screenshot of the problem
Cannot duplicate the problem... The same site renders fine on my machine which happens to be an ArchLinux box as well. I remember having some layout issues due to font sizes when I was using QtWebKit from the official Qt 4.6 package, but nothing like what your screenshot shows. However, in the upcoming standalone release of QtWebKit v2.0, I neither see this problem you are reporting nor the layout issues I used to encounter before. Anyhow, if you can try out the weekly builds of QtWebKit 2.0 from http://trac.webkit.org/wiki/QtWebKitJournal#WeeklyBuildWeek12 and see if that solves your problem or wait until QtWebKit 2.0 is released in May and reopen your ticket if the problem persists.
Created attachment 42685 [details] screenshot of same site on my machine...