Yesterday i installed a new (4.2) snapshot on my thinkpad A20m (i386). Also installed the package kdegraphics-3.5.7, which includes kpdf. When i start kpdf from the kde menu or an xterm session i get a messagebox: "Unable to find kpdf part." After accepting this message i get a new, empty window, not even a menu bar.
BTW this also happens on my desktop that runs an about 3 weeks old (4.1) snapshot.