According to the KDE-Bugtracker, this is a Qt 4.3-bug and is fixed in Qt4.4. The bug appeared in 4.0.2 since the Panel-config has been backported from the KDE 4.1 trunk - now using the broken SVG rendering. So it sounds like it won't fix untill 4.1 ....
New Information:
http:// bugs.kde. org/show_ bug.cgi? id=158824
According to the KDE-Bugtracker, this is a Qt 4.3-bug and is fixed in Qt4.4. The bug appeared in 4.0.2 since the Panel-config has been backported from the KDE 4.1 trunk - now using the broken SVG rendering. So it sounds like it won't fix untill 4.1 ....