xfce-setting-show only thing not working

[Greg Bell]

>> On my new FC4 box (recently updated), xfce-setting-show doesn't work.  If
>> I run it in a terminal, no errors are sent to STDOUT.  Bit nothing comes
>> up.
>>
>> Any idea on how to troubleshoot this?
>
> Is xfce-mcs-manager running?

no!  but if i start it manually, running xfce-setting-show kills it. 
here's the strace:

open("/lib/tls/i686/libXcursor.so.1.0", O_RDONLY) = -1 ENOENT (No such
file or directory)
open("/lib/tls/libXcursor.so.1.0", O_RDONLY) = -1 ENOENT (No such file or 
directory)
open("/lib/i686/libXcursor.so.1.0", O_RDONLY) = -1 ENOENT (No such file or 
directory)
open("/lib/libXcursor.so.1.0", O_RDONLY) = -1 ENOENT (No such file or 
directory)open("/usr/lib/tls/i686/libXcursor.so.1.0", O_RDONLY) = -1 
ENOENT (No such file or directory)
open("/usr/lib/tls/libXcursor.so.1.0", O_RDONLY) = -1 ENOENT (No such file 
or directory)
open("/usr/lib/i686/libXcursor.so.1.0", O_RDONLY) = -1 ENOENT (No such 
file or directory)
open("/usr/lib/libXcursor.so.1.0", O_RDONLY) = -1 ENOENT (No such file or 
directory)
munmap(0xb7cbf000, 55872)               = 0
--- SIGSEGV (Segmentation fault) @ 0 (0) ---

thing is, those are X11 libs, so they don't live anywhere xfce-mcs-manager 
is looking:

/usr/X11R6/lib/libXcursor.so.1
/usr/X11R6/lib/libXcursor.so.1.0.2

i haven't done anything weird on this system.  straight install, and 
management via yum.

~gb