John-

What version of the system libraries are you using?  It sounds like you 
are using a version of the shared libraries that are older than the 
current version of X.  You need to compile or get the new ones for X to 
run properly.  Also there is a much easier way of getting X to find the 
necessary libraries.  Just add a line like 

ldconfig /usr/X11R6/lib

to your /etc/rc.local file.  (Else, you can set your LD_LIBRARY_PATH 
environment variable to /usr/X11R6/lib.)

I hope this helps.

Later,

Colin
ender@rice.edu
Rice University