[Walter <walter@xxxxxxxxxxxx>]

> The first step is to see how many libz shared libraries are installed;
> if there is one installed in whatever directory XFree86 4.x installed
> its libraries, and another one installed in another directory, use the
> "nm" command to try to see if one of them defines "gzgets" and another
> doesn't.

Spot on, Xfree86 4 one is mangled.
 
> If the one installed by XFree86 doesn't, and the other one does, the
> problem is what Nathan described.

Nathan's the man! :P
 
> If so, then did you install XFree86 from source, or from a binary
> package?

Err, main XFree86 thing from a binary package by the XFree86 people, 
but then installed a my server and a heap of different NVidea drivers 
and libraries to support my GeForce2 GTS properly.  This was also 
all binary.  ICBF figuring out where the 2nd libz came from at the 
moment, but I'm inclined to believe Nathan in that it actually came 
from XFree86...
 
Cheers for the help, all.

- Walter