Tried to startup Netscape in Japanese KDE,strangely,characters of some Japanese menu get scrambled(Mojibake) and some Japanese menu and toolbar can be displayed properly. The bug is defected in qa0320,(I mailed to eng-jp-list and os-devel-list) now it is still there in seawolf
a workaround for this problem you should disable "Apply fonts and colors to non-KDE apps". in kcontrol->Look & Feel->Stil I will fix this problem today.
It's fixed in kdebase-2.1.1-10. Could you please check it, if it works.