[newbie] libMesaGL.so.3 and libMesaGLU.so.3

[BryanMoorehead]

I am new to Mandrake, but have dabbled in Linux for a couple of years.  I am
trying to install KDE.
I get the messages:
libMesaGL.so.3  is needed by <whatever RPM I am installing>
libMesaGLU.so.3 is needed by <whatever RPM I am installing>
What are these files, and where can I find them?  I know, I know.  I am too
cheap to buy the manual and too dumb to figure it out on my own, but  I have
always been able to count on my fellow Penguins to guide as well as tolerate me.


tia
Bryan Moorehead