startx problem after upgrade FC1

[Bevan C. Bennett]

Patrice Perez wrote:
> Hello,
> I have run the upgrade to FC1 from KDE and then got  a problem when 
> trying startx
> xauth: error while loading shared libraries: libXmuu.so.1: cannot open 
> shared object file: No such file or directory
> 
> same from xinit
> 
> However I can find the library in /usr/X11R6/lib
> 
> Could someone tell me how to fix this?
> Thanks

What does it say if you type in "ldd `which xauth`"?
It should look something like this:
[bevan at saladin ~]> ldd `which xauth`
         libXmuu.so.1 => /usr/X11R6/lib/libXmuu.so.1 (0x00101000)
         libXext.so.6 => /usr/X11R6/lib/libXext.so.6 (0x00625000)
         libX11.so.6 => /usr/X11R6/lib/libX11.so.6 (0x00545000)
         libc.so.6 => /lib/tls/libc.so.6 (0x41018000)
         libdl.so.2 => /lib/libdl.so.2 (0x41177000)
         /lib/ld-linux.so.2 => /lib/ld-linux.so.2 (0x41000000)

If ldd can't find the first three, you probably have a misconfigured 
ld.so. Check if /usr/X11R6/lib is listed in /etc/ld.so.conf:
[bevan at saladin ~]> more /etc/ld.so.conf
/usr/lib/mysql
/usr/X11R6/lib
/usr/lib/sane
/usr/lib/qt-3.1/lib

If it isn't, try adding it and running (as root) "ldconfig -v".
If it is, try running "ldconfig -v" anyway to update your cache information.

Then check ldd again to see if the libraries are being properly located yet.

If your ldd looks ok, something more complicated and mys-teeeer-ious is 
at work.