I came over this post: forum.kde.org
and I got really interested when someone there says they no longer have problems with garbled icons in kde 4.2.x .
I’m still a bit reluctant to upgrade to kde 4.3 simply because kde 4.2.x which I’m running right now is almost perfect, the only thing that really annoys me are those occasionally garbled icons in the tray.
So I ended up adding the QT 4.5 repo from http://en.opensuse.org/KDE/Repositories#KDE_4.2.4 and upgraded all my qt 4.4 packages to 4.5.
My first impression after restarting kdm is that this might just have been the final milestone for me to get happy with kde 4 🙂