$ uname -a Linux mammut 2.6.31-gentoo-r1 #2 SMP Mon Sep 28 12:56:08 CEST 2009 x86_64 AMD Phenom(tm) 9950 Quad-Core Processor AuthenticAMD GNU/Linux $ equery list kde-base/kde-meta [I--] [ ~] kde-base/kde-meta-4.3.1 (4.3) In SystemSettings -> Appearance, KDE offers to set the default font, esp. it's size. Unfortunately, even after saving the Desktop, these settings are not being restored. I guess this has to be reported upstream. If any additional information is preferred: just leave a note.
Do you still see this with current stable 4.3.5 or with 4.4.2? Is there an upstream bug report? If yes, please add the URL!
No reply for half a year.