Lost icons in KDE

[David Bellows <bfootdav@mindspring.com>]

Hello all,

I thought I'd live on the edge a bit and installed the latest KDE from 
unstable.  I guess everything is working except there seems to be no support 
for .png stuff.  As far as I can tell all the icons in KDE use .png, correct? 
 I have no KDE icons anywhere from any KDE app (including web browsing with 
konqueror).  I can pull up .png files in the gimp or netscape, just not in 
any KDE app. This makes using KDE difficult.

Here's some more info:
# apt-get install libpng2
Reading Package Lists... Done
Building Dependency Tree... Done
Sorry, libpng2 is already the newest version
0 packages upgraded, 0 newly installed, 0 to remove and 727 not upgraded.

When I try to run the program kiconedit it crashes repeating the following 
many times:

# kiconedit
libpng warning: Application was compiled with png.h from libpng-1.2.1
libpng warning: Application  is running with png.c from libpng-1.0.12
libpng error: Incompatible libpng version in application and library

This seems to be some kind of critical information here, but I don't know 
what to do with it.

Thanks everyone,
David Bellows